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624 lines
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129 KiB
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<title>Use Queries to Replace Nested Loops | alguidelines.dev - Business Central Design Patterns</title><meta name=description content="Originally by Bogdan Sturzoiu, Microsoft Development Center Copenhagen
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Abstract
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This pattern shows how the new query object type introduced in NAV …">
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<meta property="og:title" content="Use Queries to Replace Nested Loops">
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<meta property="og:description" content="Originally by Bogdan Sturzoiu, Microsoft Development Center Copenhagen
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Abstract This pattern shows how the new query object type introduced in NAV 2013 allows you to replace costly loops when inspecting data from two or more tables.
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Description One of the core operations in a relational database is joining two or more tables. For example, you might need to extract all sales lines in the database together with information regarding the related sales header.">
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<meta property="og:url" content="https://alguidelines.dev/docs/navpatterns/patterns/queries/use-queries-to-replace-nested-loops/"><meta property="og:image" content="https://alguidelines.dev/images/og-image-fission.png"><meta property="article:section" content="docs">
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<meta property="article:modified_time" content="2022-02-24T14:45:35+01:00"><meta property="og:site_name" content="alguidelines.dev - Business Central Design Patterns">
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<meta itemprop=name content="Use Queries to Replace Nested Loops">
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<meta itemprop=description content="Originally by Bogdan Sturzoiu, Microsoft Development Center Copenhagen
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Abstract This pattern shows how the new query object type introduced in NAV 2013 allows you to replace costly loops when inspecting data from two or more tables.
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Description One of the core operations in a relational database is joining two or more tables. For example, you might need to extract all sales lines in the database together with information regarding the related sales header.">
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<meta itemprop=dateModified content="2022-02-24T14:45:35+01:00">
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<meta name=twitter:title content="Use Queries to Replace Nested Loops">
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<meta name=twitter:description content="Originally by Bogdan Sturzoiu, Microsoft Development Center Copenhagen
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Abstract This pattern shows how the new query object type introduced in NAV 2013 allows you to replace costly loops when inspecting data from two or more tables.
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Description One of the core operations in a relational database is joining two or more tables. For example, you might need to extract all sales lines in the database together with information regarding the related sales header.">
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<span class="font-weight-bold show-desktop">alguidelines.dev - Business Central Design Patterns</span>
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<span class="font-weight-bold show-mobile-inline">alguidelines.dev</span>
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<a href=/docs/ title="AL Guidelines" class="align-left pl-0 td-sidebar-link td-sidebar-link__section tree-root" id=m-docs><span>Docs</span></a>
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<a href=/docs/patterns/api-register-fieldset/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsapi-register-fieldset><span>API Register Fieldset</span></a>
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<a href=/docs/patterns/api-delegate-operation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsapi-delegate-operation><span>Delegate API Operation</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docspatternsevent-bridge-pattern-li>
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<a href=/docs/patterns/event-bridge-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsevent-bridge-pattern><span>Event Bridge</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docspatternsfacade-pattern-li>
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<a href=/docs/patterns/facade-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsfacade-pattern><span>Façade</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docspatternsgeneric-method-pattern-li>
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<a href=/docs/patterns/generic-method-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsgeneric-method-pattern><span>Generic Method</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docspatternsno-series-li>
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<a href=/docs/patterns/no-series/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsno-series><span>No. Series</span></a>
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</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsbestpractices-li>
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<a href=/docs/bestpractices/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsbestpractices><span>Best Practices</span></a>
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<ul class="ul-2 foldable">
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<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesapi-page-li>
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<a href=/docs/bestpractices/api-page/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesapi-page><span>API Page / Query</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesbegin-as-an-afterword-li>
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<a href=/docs/bestpractices/begin-as-an-afterword/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesbegin-as-an-afterword><span>begin as an afterword</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesbegin-end-li>
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<a href=/docs/bestpractices/begin-end/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesbegin-end><span>Begin-End - Compound Only</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesbinary-operator-line-start-li>
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<a href=/docs/bestpractices/binary-operator-line-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesbinary-operator-line-start><span>Binary Operator to Start Line</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticescase-actions-li>
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<a href=/docs/bestpractices/case-actions/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticescase-actions><span>CASE Action on next line</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticescomments-spacing-li>
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<a href=/docs/bestpractices/comments-spacing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticescomments-spacing><span>Comment Spacing</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticescustomtelemetry-li>
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<a href=/docs/bestpractices/customtelemetry/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticescustomtelemetry><span>Custom Telemetry</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesdeleteall-li>
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<a href=/docs/bestpractices/deleteall/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesdeleteall><span>DeleteAll</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesend-else-pair-li>
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<a href=/docs/bestpractices/end-else-pair/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesend-else-pair><span>end else pair</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticeskeyword-pairs-indentation-li>
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<a href=/docs/bestpractices/keyword-pairs-indentation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticeskeyword-pairs-indentation><span>Keyword Pairs - Indentation</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesline-start-keywords-li>
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<a href=/docs/bestpractices/line-start-keywords/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesline-start-keywords><span>Line Start Keywords</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticeslonely-repeat-li>
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<a href=/docs/bestpractices/lonely-repeat/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticeslonely-repeat><span>Lonely Repeat</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesnamed-invocations-li>
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<a href=/docs/bestpractices/named-invocations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesnamed-invocations><span>Named Invocations</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesone-statement-per-line-li>
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<a href=/docs/bestpractices/one-statement-per-line/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesone-statement-per-line><span>One Statement per Line</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesseparate-if-and-else-li>
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<a href=/docs/bestpractices/separate-if-and-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesseparate-if-and-else><span>Seperate if and else</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesspacing-binary-operators-li>
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<a href=/docs/bestpractices/spacing-binary-operators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesspacing-binary-operators><span>Spacing Binary Operators</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticessubscribercodeunits-li>
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<a href=/docs/bestpractices/subscribercodeunits/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticessubscribercodeunits><span>Subscriber Codeunits</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticessuggested-abbreviations-li>
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<a href=/docs/bestpractices/suggested-abbreviations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticessuggested-abbreviations><span>Suggested Abbreviations</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesunnecessary-else-li>
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<a href=/docs/bestpractices/unnecessary-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesunnecessary-else><span>Unnecessary else</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesunnecessary-truefalse-li>
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<a href=/docs/bestpractices/unnecessary-truefalse/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesunnecessary-truefalse><span>Unnecessary true/false</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesvariable-naming-li>
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<a href=/docs/bestpractices/variable-naming/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesvariable-naming><span>Variable Naming</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesvariables-declarations-order-li>
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<a href=/docs/bestpractices/variables-declarations-order/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesvariables-declarations-order><span>Variables Declarations Order</span></a>
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</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child active-path" id=m-docsnavpatterns-li>
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<a href=/docs/navpatterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns><span>NAV Patterns Archive</span></a>
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<ul class="ul-2 foldable">
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<li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child active-path" id=m-docsnavpatternspatterns-li>
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<a href=/docs/navpatterns/patterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatterns><span>1. Patterns</span></a>
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<ul class="ul-3 foldable">
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<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsactivity-log-li>
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<a href=/docs/navpatterns/patterns/activity-log/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsactivity-log><span>Activity Logs</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsargument-table-li>
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<a href=/docs/navpatterns/patterns/argument-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsargument-table><span>Argument Table</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatternspatternsblocked-entity-li>
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<a href=/docs/navpatterns/patterns/blocked-entity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsblocked-entity><span>Blocked Entity</span></a>
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<ul class="ul-4 foldable">
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<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsblocked-entitydata-driven-blocked-entity-li>
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<a href=/docs/navpatterns/patterns/blocked-entity/data-driven-blocked-entity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsblocked-entitydata-driven-blocked-entity><span>Data Driven Blocked Entity</span></a>
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</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternscached-web-service-calls-li>
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<a href=/docs/navpatterns/patterns/cached-web-service-calls/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscached-web-service-calls><span>Cached Web Server Calls</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsconditional-cascading-update-li>
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<a href=/docs/navpatterns/patterns/conditional-cascading-update/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsconditional-cascading-update><span>Conditional Cascading Update</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternscopy-document-li>
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<a href=/docs/navpatterns/patterns/copy-document/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscopy-document><span>Copy Document</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternscreate-data-from-templates-li>
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<a href=/docs/navpatterns/patterns/create-data-from-templates/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscreate-data-from-templates><span>Create Data from Templates</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternscreate-urls-to-nav-clients-li>
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<a href=/docs/navpatterns/patterns/create-urls-to-nav-clients/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscreate-urls-to-nav-clients><span>Create URLs to NAV Clients</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternscreating-custom-charts-li>
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<a href=/docs/navpatterns/patterns/creating-custom-charts/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscreating-custom-charts><span>Creating Custom Charts</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternscross-session-events-li>
|
|
<a href=/docs/navpatterns/patterns/cross-session-events/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscross-session-events><span>Cross Session Events</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternscurrently-active-record-li>
|
|
<a href=/docs/navpatterns/patterns/currently-active-record/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscurrently-active-record><span>Currently Active Record</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsdata-migration-facade-li>
|
|
<a href=/docs/navpatterns/patterns/data-migration-facade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsdata-migration-facade><span>Data Migration Façade</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsdiscovery-event-li>
|
|
<a href=/docs/navpatterns/patterns/discovery-event/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsdiscovery-event><span>Discovery Event</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsdocument-li>
|
|
<a href=/docs/navpatterns/patterns/document/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsdocument><span>Document</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternseasy-update-of-setup-or-supplementary-information-li>
|
|
<a href=/docs/navpatterns/patterns/easy-update-of-setup-or-supplementary-information/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternseasy-update-of-setup-or-supplementary-information><span>Easy Update Of Setup Or Supplementary Information</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternserror-message-processing-li>
|
|
<a href=/docs/navpatterns/patterns/error-message-processing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternserror-message-processing><span>Error Message Processing</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsextending-the-role-center-headlines-li>
|
|
<a href=/docs/navpatterns/patterns/extending-the-role-center-headlines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsextending-the-role-center-headlines><span>Extending the Role Center Headlines</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsfeature-localization-for-data-structures-li>
|
|
<a href=/docs/navpatterns/patterns/feature-localization-for-data-structures/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsfeature-localization-for-data-structures><span>Feature Localization For Data Structures</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternshooks-li>
|
|
<a href=/docs/navpatterns/patterns/hooks/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternshooks><span>Hooks</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsimplementation-of-surrogate-keys-using-autoincrement-pattern-li>
|
|
<a href=/docs/navpatterns/patterns/implementation-of-surrogate-keys-using-autoincrement-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsimplementation-of-surrogate-keys-using-autoincrement-pattern><span>Surrogate keys using Autoincrement Pattern</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsinstructions-in-the-ui-li>
|
|
<a href=/docs/navpatterns/patterns/instructions-in-the-ui/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsinstructions-in-the-ui><span>Instructions in the UI</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsintegration-of-addresses-li>
|
|
<a href=/docs/navpatterns/patterns/integration-of-addresses/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsintegration-of-addresses><span>Integration of Addresses</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsjournal-error-processing-li>
|
|
<a href=/docs/navpatterns/patterns/journal-error-processing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsjournal-error-processing><span>Journal Error Processing</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsjournal-template-batch-line-li>
|
|
<a href=/docs/navpatterns/patterns/journal-template-batch-line/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsjournal-template-batch-line><span>Journal Template Batch Line</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsmaster-data-li>
|
|
<a href=/docs/navpatterns/patterns/master-data/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmaster-data><span>Master Data</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsmulti-file-download-li>
|
|
<a href=/docs/navpatterns/patterns/multi-file-download/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmulti-file-download><span>Multi-file Download</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsmulti-page-list-li>
|
|
<a href=/docs/navpatterns/patterns/multi-page-list/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmulti-page-list><span>Multi-Page List</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsmultilanguage-application-data-li>
|
|
<a href=/docs/navpatterns/patterns/multilanguage-application-data/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmultilanguage-application-data><span>Multilanguage Application Data</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatternspatternsnet-exception-handling-in-cal-li>
|
|
<a href=/docs/navpatterns/patterns/net-exception-handling-in-cal/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsnet-exception-handling-in-cal><span>NET Exception Handling in CAL</span></a>
|
|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsnet-exception-handling-in-caltryfunction-net-exception-handling-in-cal-li>
|
|
<a href=/docs/navpatterns/patterns/net-exception-handling-in-cal/tryfunction-net-exception-handling-in-cal/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsnet-exception-handling-in-caltryfunction-net-exception-handling-in-cal><span>TryFunction NET Exception Handling in CAL</span></a>
|
|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsno-series-li>
|
|
<a href=/docs/navpatterns/patterns/no-series/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsno-series><span>No Series</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatternspatternsnotifications-li>
|
|
<a href=/docs/navpatterns/patterns/notifications/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsnotifications><span>Notifications</span></a>
|
|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsnotificationsin-context-notifications-li>
|
|
<a href=/docs/navpatterns/patterns/notifications/in-context-notifications/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsnotificationsin-context-notifications><span>In-context Notifications</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsnotificationsnotification-lifecycle-management-pattern-li>
|
|
<a href=/docs/navpatterns/patterns/notifications/notification-lifecycle-management-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsnotificationsnotification-lifecycle-management-pattern><span>Notification Lifecycle Management Pattern</span></a>
|
|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsobserver-li>
|
|
<a href=/docs/navpatterns/patterns/observer/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsobserver><span>Observer</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsposting-routine-select-behavior-li>
|
|
<a href=/docs/navpatterns/patterns/posting-routine-select-behavior/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsposting-routine-select-behavior><span>Posting Routine - Select Behavior</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsproduct-name-li>
|
|
<a href=/docs/navpatterns/patterns/product-name/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsproduct-name><span>Product Name</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child active-path" id=m-docsnavpatternspatternsqueries-li>
|
|
<a href=/docs/navpatterns/patterns/queries/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsqueries><span>Queries</span></a>
|
|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsqueriesselect-distinct-with-queries-li>
|
|
<a href=/docs/navpatterns/patterns/queries/select-distinct-with-queries/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsqueriesselect-distinct-with-queries><span>SELECT DISTINCT with Queries</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsqueriesuse-queries-to-detect-duplicate-records-li>
|
|
<a href=/docs/navpatterns/patterns/queries/use-queries-to-detect-duplicate-records/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsqueriesuse-queries-to-detect-duplicate-records><span>Use Queries to Detect Duplicate Records</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child active-path" id=m-docsnavpatternspatternsqueriesuse-queries-to-replace-nested-loops-li>
|
|
<a href=/docs/navpatterns/patterns/queries/use-queries-to-replace-nested-loops/ class="align-left pl-0 active td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsqueriesuse-queries-to-replace-nested-loops><span class=td-sidebar-nav-active-item>Use Queries to Replace Nested Loops</span></a>
|
|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsread-once-initialization-and-validation-li>
|
|
<a href=/docs/navpatterns/patterns/read-once-initialization-and-validation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsread-once-initialization-and-validation><span>Read-once Initialization and Validation</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsreleased-entity-li>
|
|
<a href=/docs/navpatterns/patterns/released-entity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsreleased-entity><span>Released Entity</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsreport-selection-li>
|
|
<a href=/docs/navpatterns/patterns/report-selection/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsreport-selection><span>Report Selection</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatternspatternssecurity-li>
|
|
<a href=/docs/navpatterns/patterns/security/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternssecurity><span>Security</span></a>
|
|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity1-sensitive-data-encapsulation-li>
|
|
<a href=/docs/navpatterns/patterns/security/1-sensitive-data-encapsulation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity1-sensitive-data-encapsulation><span>Sensitive Data Encapsulation</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity2-data-encryption-li>
|
|
<a href=/docs/navpatterns/patterns/security/2-data-encryption/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity2-data-encryption><span>Data Encryption</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity3-single-point-of-access-li>
|
|
<a href=/docs/navpatterns/patterns/security/3-single-point-of-access/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity3-single-point-of-access><span>Single Point of Access</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity4-masked-text-li>
|
|
<a href=/docs/navpatterns/patterns/security/4-masked-text/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity4-masked-text><span>Masked Text</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity5-ssl-in-nav-li>
|
|
<a href=/docs/navpatterns/patterns/security/5-ssl-in-nav/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity5-ssl-in-nav><span>SSL in NAV</span></a>
|
|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternssetup-specificity-fallback-li>
|
|
<a href=/docs/navpatterns/patterns/setup-specificity-fallback/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssetup-specificity-fallback><span>Setup Specificity Fallback</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternssilent-file-upload-and-download-li>
|
|
<a href=/docs/navpatterns/patterns/silent-file-upload-and-download/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssilent-file-upload-and-download><span>Silent File Upload and Download</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatternspatternssingleton-li>
|
|
<a href=/docs/navpatterns/patterns/singleton/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternssingleton><span>Singleton</span></a>
|
|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssingletonsingleton-codeunit-li>
|
|
<a href=/docs/navpatterns/patterns/singleton/singleton-codeunit/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssingletonsingleton-codeunit><span>Singleton Codeunit</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternssingletonsingleton-table-li>
|
|
<a href=/docs/navpatterns/patterns/singleton/singleton-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternssingletonsingleton-table><span>Singleton Table</span></a>
|
|
<ul class="ul-5 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssingletonsingleton-tablecue-table-li>
|
|
<a href=/docs/navpatterns/patterns/singleton/singleton-table/cue-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssingletonsingleton-tablecue-table><span>Cue Table</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssingletonsingleton-tablesetup-table-li>
|
|
<a href=/docs/navpatterns/patterns/singleton/singleton-table/setup-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssingletonsingleton-tablesetup-table><span>Setup Table</span></a>
|
|
</li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsstandard-journal-li>
|
|
<a href=/docs/navpatterns/patterns/standard-journal/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsstandard-journal><span>Standard Journal</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternstemporary-dataset-report-li>
|
|
<a href=/docs/navpatterns/patterns/temporary-dataset-report/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternstemporary-dataset-report><span>Temporary Dataset Report</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternstotals-and-discounts-on-subpages-sales-and-purchases-li>
|
|
<a href=/docs/navpatterns/patterns/totals-and-discounts-on-subpages-sales-and-purchases/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternstotals-and-discounts-on-subpages-sales-and-purchases><span>Totals and Discounts on Subpages Sales and Purchases</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternstransfer-custom-fields-li>
|
|
<a href=/docs/navpatterns/patterns/transfer-custom-fields/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternstransfer-custom-fields><span>Transfer Custom Fields</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsnavpatternspatternsvariant-facade-li>
|
|
<a href=/docs/navpatterns/patterns/variant-facade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsvariant-facade><span>Variant Facade</span></a>
|
|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatterns2-anti-patterns-li>
|
|
<a href=/docs/navpatterns/2-anti-patterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns2-anti-patterns><span>2. Anti-Patterns</span></a>
|
|
<ul class="ul-3 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns2-anti-patternsnav-upgrade-li>
|
|
<a href=/docs/navpatterns/2-anti-patterns/nav-upgrade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns2-anti-patternsnav-upgrade><span>Nav Upgrade</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns2-anti-patternsreusable-bugs-li>
|
|
<a href=/docs/navpatterns/2-anti-patterns/reusable-bugs/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns2-anti-patternsreusable-bugs><span>Reusable Bugs</span></a>
|
|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatterns3-cal-coding-guidelines-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelines><span>3. CAL Coding Guidelines</span></a>
|
|
<ul class="ul-3 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesign-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/design/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelinesdesign><span>Design</span></a>
|
|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignby-reference-parameters-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/by-reference-parameters/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignby-reference-parameters><span>By Reference Parameters</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignclass-coupling-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/class-coupling/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignclass-coupling><span>Class Coupling</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesigncyclomatic-complexity-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/cyclomatic-complexity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesigncyclomatic-complexity><span>Cyclomatic Complexity</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignencapsulate-local-functionality-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/encapsulate-local-functionality/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignencapsulate-local-functionality><span>Encapsulate Local Functionality</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignfindset-findfirst-findlast-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/findset-findfirst-findlast/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignfindset-findfirst-findlast><span>FINDSET FINDFIRST FINDLAST</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesigninitialized-variables-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/initialized-variables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesigninitialized-variables><span>Initialized Variables</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignmaintainability-index-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/maintainability-index/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignmaintainability-index><span>Maintainability Index</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignparameter-placeholders-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/parameter-placeholders/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignparameter-placeholders><span>Parameter Placeholders</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignstatic-object-invocation-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/static-object-invocation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignstatic-object-invocation><span>Static Object Invocation</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunreachable-code-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/unreachable-code/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunreachable-code><span>Unreachable Code</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-initialized-variables-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/unused-initialized-variables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-initialized-variables><span>Unused Initialized Variables</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-variables-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/unused-variables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-variables><span>Unused Variables</span></a>
|
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignvariable-capacity-mismatch-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/design/variable-capacity-mismatch/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignvariable-capacity-mismatch><span>Variable Capacity Mismatch</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignwith-scope-name-collision-li>
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|
<a href=/docs/navpatterns/3-cal-coding-guidelines/design/with-scope-name-collision/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignwith-scope-name-collision><span>WITH Scope Name Collision</span></a>
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</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesinternally-used-dot-net-types-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/internally-used-dot-net-types/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesinternally-used-dot-net-types><span>Internally used DotNet Types</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalization-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/internationalization/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalization><span>Internationalization</span></a>
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<ul class="ul-4 foldable">
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<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalizationusing-calcdate-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/internationalization/using-calcdate/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalizationusing-calcdate><span>Using Calcdate</span></a>
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|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizability-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelineslocalizability><span>Localizability</span></a>
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|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilitycaptionml-for-system-tables-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/captionml-for-system-tables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilitycaptionml-for-system-tables><span>CaptionML on System Pages</span></a>
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|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityfieldcaption-and-tablecaption-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/fieldcaption-and-tablecaption/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityfieldcaption-and-tablecaption><span>FIELDCAPTION and TABLECAPTION</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityglobal-text-constants-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/global-text-constants/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityglobal-text-constants><span>Global Text Constants</span></a>
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|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityuse-text-constants-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/use-text-constants/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityuse-text-constants><span>Use Text Constants</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityusing-optioncaptionml-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/using-optioncaptionml/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityusing-optioncaptionml><span>Using OptionCaptionML</span></a>
|
|
</li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadability-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelinesreadability><span>Readability</span></a>
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|
<ul class="ul-4 foldable">
|
|
<li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-as-an-afterword-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/begin-as-an-afterword/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-as-an-afterword><span>Begin as an 'After Word'</span></a>
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-end-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/begin-end/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-end><span>Begin-End - Compound Only</span></a>
|
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybinary-operator-line-start-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/binary-operator-line-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybinary-operator-line-start><span>Binary Operator to Start Line</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityblank-lines-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/blank-lines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityblank-lines><span>Blank Lines</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycase-actions-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/case-actions/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycase-actions><span>CASE Action</span></a>
|
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycolon-usage-in-case-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/colon-usage-in-case/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycolon-usage-in-case><span>Colon usage in CASE</span></a>
|
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-curly-brackets-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/comments-curly-brackets/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-curly-brackets><span>Comments inside Curly Brackets</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-spacing-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/comments-spacing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-spacing><span>Comment Spacing</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityend-else-pair-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/end-else-pair/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityend-else-pair><span>END ELSE Pair</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityindentation-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/indentation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityindentation><span>Indentation</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitykeyword-pairs-indentation-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/keyword-pairs-indentation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitykeyword-pairs-indentation><span>Keyword Pairs - Indentation</span></a>
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|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityline-start-keywords-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/line-start-keywords/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityline-start-keywords><span>Line Start Keywords</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitylonely-repeat-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/lonely-repeat/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitylonely-repeat><span>Lonely Repeat</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynamed-invocations-li>
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/named-invocations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynamed-invocations><span>Named Invocations</span></a>
|
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynested-withs-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/nested-withs/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynested-withs><span>Nested WITHs</span></a>
|
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityone-statement-per-line-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/one-statement-per-line/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityone-statement-per-line><span>One Statement Per Line</span></a>
|
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</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityseparate-if-and-else-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/separate-if-and-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityseparate-if-and-else><span>Separate IF and ELSE</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-binary-operators-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/spacing-binary-operators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-binary-operators><span>Spacing Binary Operators</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-brackets-and-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/spacing-brackets-and/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-brackets-and><span>Spacing Brackets and ::</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-unary-operators-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/spacing-unary-operators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-unary-operators><span>Spacing Unary Operators</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitysuggested-abbreviations-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/suggested-abbreviations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitysuggested-abbreviations><span>Suggested Abbreviations</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytemporary-variable-naming-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/temporary-variable-naming/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytemporary-variable-naming><span>Temporary Variable Naming</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytextconst-suffixes-li>
|
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<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/textconst-suffixes/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytextconst-suffixes><span>TextConst Suffixes</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunary-operator-line-end-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unary-operator-line-end/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunary-operator-line-end><span>Unary Operator Line End</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-compound-parenthesis-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-compound-parenthesis/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-compound-parenthesis><span>Unnecessary Compound Parenthesis</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-else-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-else><span>Unnecessary ELSE</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-function-parenthesis-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-function-parenthesis/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-function-parenthesis><span>Unnecessary Function Parenthesis</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-separators-li>
|
|
<a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-separators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-separators><span>Unnecessary Separators</span></a>
|
|
</li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-truefalse-li>
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<li><a href=#abstract>Abstract</a>
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<a href=https://alguidelines.dev/docs/navpatterns/patterns/queries/use-queries-to-replace-nested-loops/>Use Queries to Replace Nested Loops</a>
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<h1>Use Queries to Replace Nested Loops</h1><header class=article-meta>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/c/al/ data-taxonomy-term=c/al><span class=taxonomy-label>C/AL</span></a></li></ul></div><div class="taxonomy taxonomy-terms-article taxo-categories">
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<li><a class=taxonomy-term href=https://alguidelines.dev/categories/pattern/ data-taxonomy-term=pattern><span class=taxonomy-label>Pattern</span></a></li></ul></div></header><p><em>Originally by Bogdan Sturzoiu, Microsoft Development Center Copenhagen</em></p><h2 id=abstract>Abstract</h2><p>This pattern shows how the new query object type introduced in NAV 2013 allows you to replace costly loops when inspecting data from two or more tables.</p><h3 id=description>Description</h3><p>One of the core operations in a relational database is joining two or more tables. For example, you might need to extract all sales lines in the database together with information regarding the related sales header. This requires joining the Sales Header and Sales Line tables using Sales Header No. as the connecting field.;</p><p>The join operation has traditionally been done in C/AL by record looping. When NAV 2013 introduced the query object, it allowed us to produce a data set that is the result of a join operation between two or more tables. This simplifies the problem of finding related records in two tables linked through a foreign key.</p><h4 id=pattern-elements>Pattern Elements</h4><ol>
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<li>Two or more tables that contain records linked through a foreign key: Table 1, Table 2, Table n.</li><li>A query object Query X, that joins Table 1, Table 2, etc. based on the connecting key.</li><li>A processing codeunit that loops through the query records (or any other code-bearing object).</li></ol><h4 id=pattern-steps>Pattern Steps</h4><ol>
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<li>Run the query on the connected tables.</li><li>Loop through the records returned by the query.</li><li>Process the records.</li></ol><p><a href=5040.clip_5F00_image002.png><img src=5040.clip_5F00_image002.png alt=" "></a></p><p><em>Figure 1. The pattern elements</em></p><h3 id=usage>Usage</h3><h4 id=sample-problem>Sample Problem</h4><p>The Bank Acc. Reconciliation Line table (274) and the Bank Account Ledger Entry table (271) are connected through the Bank Account No. field. Identify the matching pairs of records based on having the same remaining amount and transaction date.</p><h4 id=solution-using-nested-loops>Solution Using Nested Loops</h4><p>The classic C/AL approach is to:</p><ol>
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<li>Set the necessary filters on the left table, i.e. table 274.</li><li>Loop through the filtered records.</li><li>For each record in the filter, find the related records in the right table (table 271) and set the required filters on it.</li><li>For each pair of records from the left and right table, decide if they are a solution and if so, apply them to each other.</li></ol><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-al data-lang=al><span style=display:flex><span><span style=color:#204a87;font-weight:700>PROCEDURE</span><span style=color:#f8f8f8;text-decoration:underline> </span>MatchSingle@<span style=color:#0000cf;font-weight:700>5</span><span style=color:#ce5c00;font-weight:700>(</span>BankAccReconciliation@<span style=color:#0000cf;font-weight:700>1003</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>273</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>VAR</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine@<span style=color:#0000cf;font-weight:700>1005</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>274</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry@<span style=color:#0000cf;font-weight:700>1006</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>271</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccEntrySetReconNo@<span style=color:#0000cf;font-weight:700>1007</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>375</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>BEGIN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span>"Bank Account No."<span style=color:#000;font-weight:700>,</span>BankAccReconciliation<span style=color:#ce5c00;font-weight:700>.</span>"Bank Account No."<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span>"Statement No."<span style=color:#000;font-weight:700>,</span>BankAccReconciliation<span style=color:#ce5c00;font-weight:700>.</span>"Statement No."<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>SETFILTER<span style=color:#ce5c00;font-weight:700>(</span>Difference<span style=color:#000;font-weight:700>,</span><span style=color:#4e9a06>'<>%1'</span><span style=color:#000;font-weight:700>,</span><span style=color:#0000cf;font-weight:700>0</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>Type</span><span style=color:#000;font-weight:700>,</span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span><span style=color:#204a87;font-weight:700>Type</span><span style=color:#000;font-weight:700>::</span>"Bank Account Ledger Entry"<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>IF</span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>FINDSET<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>THEN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>REPEAT</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span>"Bank Account No."<span style=color:#000;font-weight:700>,</span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>"Bank Account No."<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span>Open<span style=color:#000;font-weight:700>,</span>TRUE<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span>"Statement Status"<span style=color:#000;font-weight:700>,</span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>"Statement Status"<span style=color:#000;font-weight:700>::</span>Open<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>SETFILTER<span style=color:#ce5c00;font-weight:700>(</span>"Remaining Amount"<span style=color:#000;font-weight:700>,</span><span style=color:#4e9a06>'<>%1'</span><span style=color:#000;font-weight:700>,</span><span style=color:#0000cf;font-weight:700>0</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>IF</span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>FINDSET<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>THEN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>REPEAT</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>IF</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>(</span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>Difference<span style=color:#f8f8f8;text-decoration:underline> </span>=<span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>"Remaining Amount"<span style=color:#ce5c00;font-weight:700>) </span><span style=color:#204a87;font-weight:700>AND</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>(</span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>"Transaction Date"<span style=color:#f8f8f8;text-decoration:underline> </span>=<span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>"Posting Date"<span style=color:#ce5c00;font-weight:700>) </span><span style=color:#204a87;font-weight:700>THEN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccEntrySetReconNo<span style=color:#ce5c00;font-weight:700>.</span>ApplyEntries<span style=color:#ce5c00;font-weight:700>(
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</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span>BankAccRecLine<span style=color:#000;font-weight:700>,</span>BankAccLedgerEntry<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>Relation<span style=color:#000;font-weight:700>::</span>"One-to-One"<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>UNTIL</span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>NEXT<span style=color:#f8f8f8;text-decoration:underline> </span>=<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>0</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>UNTIL</span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>NEXT<span style=color:#f8f8f8;text-decoration:underline> </span>=<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>0</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>END</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span></code></pre></div><p><strong>Solution Using Query</strong></p><p>The new query-based approach involves:</p><ol>
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<li>Define a query that returns the full filtered join of tables 271 and 274.</li><li>Loop through the records returned by the query.</li><li>For each query record, decide if it represents a solution and then connect the two table records that formed it through an application.</li></ol><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-al data-lang=al><span style=display:flex><span><span style=color:#204a87;font-weight:700>PROCEDURE</span><span style=color:#f8f8f8;text-decoration:underline> </span>MatchSingle@<span style=color:#0000cf;font-weight:700>5</span><span style=color:#ce5c00;font-weight:700>(</span>BankAccReconciliation@<span style=color:#0000cf;font-weight:700>1003</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>273</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>VAR</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates@<span style=color:#0000cf;font-weight:700>1001</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Query</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>1252</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccEntrySetReconNo@<span style=color:#0000cf;font-weight:700>1007</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>375</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>BEGIN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span>Rec_Line_Bank_Account_No<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccReconciliation<span style=color:#ce5c00;font-weight:700>.</span>"Bank Account No."<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>SETRANGE<span style=color:#ce5c00;font-weight:700>(</span>Rec_Line_Statement_No<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccReconciliation<span style=color:#ce5c00;font-weight:700>.</span>"Statement No."<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>IF</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>NOT</span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>OPEN<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>THEN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>EXIT</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>WHILE</span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>READ<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>DO</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>BEGIN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccLedgerEntry<span style=color:#ce5c00;font-weight:700>.</span>GET<span style=color:#ce5c00;font-weight:700>(</span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>Entry_No<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>GET<span style=color:#ce5c00;font-weight:700>(</span>BankAccRecLine<span style=color:#ce5c00;font-weight:700>.</span>"Statement Type"<span style=color:#000;font-weight:700>::</span>"Bank Reconciliation"<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>Rec_Line_Bank_Account_No<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>Rec_Line_Statement_No<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankRecMatchCandidates<span style=color:#ce5c00;font-weight:700>.</span>Rec_Line_Statement_Line_No<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BankAccEntrySetReconNo<span style=color:#ce5c00;font-weight:700>.</span>ApplyEntries<span style=color:#ce5c00;font-weight:700>(</span>BankAccRecLine<span style=color:#000;font-weight:700>,</span>BankAccLedgerEntry<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Relation<span style=color:#000;font-weight:700>::</span>"One-to-One"<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>END</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>END</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span></code></pre></div><p>where the query 1252 is defined as:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-al data-lang=al><span style=display:flex><span>OBJECT<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Query</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>1252</span><span style=color:#f8f8f8;text-decoration:underline> </span>Bank<span style=color:#f8f8f8;text-decoration:underline> </span>Rec<span style=color:#ce5c00;font-weight:700>. </span>Match<span style=color:#f8f8f8;text-decoration:underline> </span>Candidates<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>{<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>OBJECT<span style=color:#ce5c00;font-weight:700>-</span>PROPERTIES<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Date</span>=<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Time</span>=<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Version</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>List</span>=<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>PROPERTIES<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>ELEMENTS</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>1</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>DataItem</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataItemTable=Table274<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataItemTableFilter=Difference=<span style=color:#204a87;font-weight:700>FILTER</span><span style=color:#ce5c00;font-weight:700>(</span><><span style=color:#0000cf;font-weight:700>0</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Type</span>=<span style=color:#204a87;font-weight:700>FILTER</span><span style=color:#ce5c00;font-weight:700>(</span>=Bank<span style=color:#f8f8f8;text-decoration:underline> </span>Account<span style=color:#f8f8f8;text-decoration:underline> </span>Ledger<span style=color:#f8f8f8;text-decoration:underline> </span>Entry<span style=color:#ce5c00;font-weight:700>) </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>2</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>1</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span>Rec_Line_Bank_Account_No<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Bank<span style=color:#f8f8f8;text-decoration:underline> </span>Account<span style=color:#f8f8f8;text-decoration:underline> </span>No<span style=color:#ce5c00;font-weight:700>. </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>3</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>1</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span>Rec_Line_Statement_No<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Statement<span style=color:#f8f8f8;text-decoration:underline> </span>No<span style=color:#ce5c00;font-weight:700>. </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>4</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>1</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span>Rec_Line_Statement_Line_No<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Statement<span style=color:#f8f8f8;text-decoration:underline> </span>Line<span style=color:#f8f8f8;text-decoration:underline> </span>No<span style=color:#ce5c00;font-weight:700>. </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>5</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>1</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span>Rec_Line_Transaction_Date<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Transaction<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Date</span><span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>6</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>1</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span>Rec_Line_Difference<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Difference<span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>7</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>1</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>DataItem</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataItemTable=Table271<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataItemTableFilter=Remaining<span style=color:#f8f8f8;text-decoration:underline> </span>Amount=<span style=color:#204a87;font-weight:700>FILTER</span><span style=color:#ce5c00;font-weight:700>(</span><><span style=color:#0000cf;font-weight:700>0</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Open=<span style=color:#204a87;font-weight:700>CONST</span><span style=color:#ce5c00;font-weight:700>(</span>Yes<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Statement<span style=color:#f8f8f8;text-decoration:underline> </span>Status=<span style=color:#204a87;font-weight:700>FILTER</span><span style=color:#ce5c00;font-weight:700>(</span>Open<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataItemLink=Bank<span style=color:#f8f8f8;text-decoration:underline> </span>Account<span style=color:#f8f8f8;text-decoration:underline> </span>No<span style=color:#ce5c00;font-weight:700>.</span>=Bank_Acc_Reconciliation_Line<span style=color:#ce5c00;font-weight:700>.</span>"Bank Account o."<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Remaining<span style=color:#f8f8f8;text-decoration:underline> </span>Amount=Bank_Acc_Reconciliation_Line<span style=color:#ce5c00;font-weight:700>.</span>Difference<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Posting<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Date</span>=Bank_Acc_Reconciliation_Line<span style=color:#ce5c00;font-weight:700>.</span>"Transaction Date"<span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>8</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>2</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Entry<span style=color:#f8f8f8;text-decoration:underline> </span>No<span style=color:#ce5c00;font-weight:700>. </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>9</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>2</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span>Bank_Account_No<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Bank<span style=color:#f8f8f8;text-decoration:underline> </span>Account<span style=color:#f8f8f8;text-decoration:underline> </span>No<span style=color:#ce5c00;font-weight:700>. </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>10</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>2</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Posting<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Date</span><span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>11</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>2</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Remaining<span style=color:#f8f8f8;text-decoration:underline> </span>Amount<span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>12</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>2</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span>Bank_Ledger_Entry_Open<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Open<span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>13</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#0000cf;font-weight:700>2</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#204a87;font-weight:700>Column</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DataSource=Statement<span style=color:#f8f8f8;text-decoration:underline> </span>Status<span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>CODE</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>{<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>BEGIN</span><span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>END</span><span style=color:#ce5c00;font-weight:700>.
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</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span>}<span style=color:#f8f8f8;text-decoration:underline>
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</span></span></span></code></pre></div><p>When comparing the two implementations, we notice the following advantages of using a query instead of two loops:Comparison</p><ol>
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<li>A query produces the Cartesian product of tables 1 and 2 faster than by looping through both of them. The advantage grows as there are more tables linked.</li></ol><p>The query object leverages the power of SQL Server (as it basically executes a SQL query directly against the database server), and as such it only requires one trip to the database to fetch the data, instead of getting the related records on the right side of the join one by one.</p><ol>
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<li>A query is scalable in the sense that it allows reusing its definition by applying filters when looping through its dataset. So a generic query can be reused for a variety of purposes just by adapting the filters to the programming need. Duplicating traditional record loops in different functions, on the other side, requires extensive code copy-pasting, which can introduce code defects.</li><li>Using a query only requires one loop, whereas joining two or more tables requires multiple code loops that quickly become difficult to read and follow.</li><li>Queries are easy to create and maintain and generally provide a cleaner design.</li></ol><h3 id=nav-specific-examples>NAV Specific Examples</h3><p>In Microsoft Dynamics NAV 2013 R2, we can see the query object used in the bank account reconciliation matching algorithm. The object is query Bank Rec. Match Candidates query (1252), and it is called by the matching engine in the Match Bank Rec. Lines codeunit (1252).</p><h3 id=ideas-for-improvement>Ideas for Improvement</h3><p>The query object type could be improved to allow the passing of parameters at runtime, or, in general, being built dynamically at runtime. This will remove the need for multiple static definitions of the same base query used in slightly different contexts.</p><div class="text-muted mt-5 pt-3 border-top">
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Last modified February 24, 2022: <a href=https://github.com/microsoft/alguidelines/commit/5ee0436639455a35835c5ce88241d3fad662ee06>Added tags & categories + cleanup (5ee04366)</a>
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