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@ -24,14 +24,14 @@ Abstract This pattern shows how the new query object type introduced in NAV 2013
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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:type" content="article">
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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="2022-02-20T13:18:49+01:00"><meta property="og:site_name" content="alguidelines.dev - Business Central Design Patterns">
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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="2022-02-20T13:18:49+01:00">
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<meta itemprop=dateModified content="2022-02-24T14:45:35+01:00">
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<meta itemprop=wordCount content="729"><meta itemprop=image content="https://alguidelines.dev/images/og-image-fission.png">
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<meta itemprop=keywords content><meta name=twitter:card content="summary_large_image">
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<meta itemprop=keywords content="C/AL,"><meta name=twitter:card content="summary_large_image">
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<meta name=twitter:image content="https://alguidelines.dev/images/og-image-fission.png">
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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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@ -66,7 +66,7 @@ Description One of the core operations in a relational database is joining two o
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</li>
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</ul>
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</div>
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<div class="navbar-nav d-none d-lg-block"><input type=search class="form-control td-search-input" placeholder=" Search this site…" aria-label="Search this site…" autocomplete=off data-offline-search-index-json-src=/offline-search-index.15c58480f48832fcc402771c708f2f1a.json data-offline-search-base-href=/ data-offline-search-max-results=10>
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<div class="navbar-nav d-none d-lg-block"><input type=search class="form-control td-search-input" placeholder=" Search this site…" aria-label="Search this site…" autocomplete=off data-offline-search-index-json-src=/offline-search-index.2b0c36478a8660f3dec37e0c539508bc.json data-offline-search-base-href=/ data-offline-search-max-results=10>
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</div>
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</nav>
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</header>
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@ -77,7 +77,7 @@ Description One of the core operations in a relational database is joining two o
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<div id=td-sidebar-menu class=td-sidebar__inner>
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<div id=content-mobile>
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<form class="td-sidebar__search d-flex align-items-center">
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<input type=search class="form-control td-search-input" placeholder=" Search this site…" aria-label="Search this site…" autocomplete=off data-offline-search-index-json-src=/offline-search-index.15c58480f48832fcc402771c708f2f1a.json data-offline-search-base-href=/ data-offline-search-max-results=10>
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<input type=search class="form-control td-search-input" placeholder=" Search this site…" aria-label="Search this site…" autocomplete=off data-offline-search-index-json-src=/offline-search-index.2b0c36478a8660f3dec37e0c539508bc.json data-offline-search-base-href=/ data-offline-search-max-results=10>
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<button class="btn btn-link td-sidebar__toggle d-md-none p-0 ml-3 fas fa-bars" type=button data-toggle=collapse data-target=#td-section-nav aria-controls=td-docs-nav aria-expanded=false aria-label="Toggle section navigation">
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</button>
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</form>
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@ -148,7 +148,7 @@ Description One of the core operations in a relational database is joining two o
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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>Patterns</span></a>
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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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@ -517,19 +517,21 @@ Description One of the core operations in a relational database is joining two o
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<div class="taxonomy taxonomy-terms-cloud taxo-tags">
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<h5 class=taxonomy-title>Tag Cloud</h5>
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<ul class=taxonomy-terms>
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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><span class=taxonomy-count>1</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/al/ data-taxonomy-term=al><span class=taxonomy-label>AL</span><span class=taxonomy-count>25</span></a></li>
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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><span class=taxonomy-count>136</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/decoupling/ data-taxonomy-term=decoupling><span class=taxonomy-label>Decoupling</span><span class=taxonomy-count>2</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/extendability/ data-taxonomy-term=extendability><span class=taxonomy-label>Extendability</span><span class=taxonomy-count>3</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/interface/ data-taxonomy-term=interface><span class=taxonomy-label>Interface</span><span class=taxonomy-count>1</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/nav/ data-taxonomy-term=nav><span class=taxonomy-label>NAV</span><span class=taxonomy-count>1</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/performance/ data-taxonomy-term=performance><span class=taxonomy-label>Performance</span><span class=taxonomy-count>2</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/readability/ data-taxonomy-term=readability><span class=taxonomy-label>Readability</span><span class=taxonomy-count>18</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/readability/ data-taxonomy-term=readability><span class=taxonomy-label>Readability</span><span class=taxonomy-count>53</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/tags/testability/ data-taxonomy-term=testability><span class=taxonomy-label>Testability</span><span class=taxonomy-count>2</span></a></li>
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</ul>
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</div>
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<div class="taxonomy taxonomy-terms-cloud taxo-categories">
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<h5 class=taxonomy-title>Categories</h5>
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<ul class=taxonomy-terms>
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<li><a class=taxonomy-term href=https://alguidelines.dev/categories/archived-pattern/ data-taxonomy-term=archived-pattern><span class=taxonomy-label>Archived Pattern</span><span class=taxonomy-count>1</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/categories/best-practice/ data-taxonomy-term=best-practice><span class=taxonomy-label>Best Practice</span><span class=taxonomy-count>21</span></a></li>
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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><span class=taxonomy-count>4</span></a></li>
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<li><a class=taxonomy-term href=https://alguidelines.dev/categories/best-practice/ data-taxonomy-term=best-practice><span class=taxonomy-label>Best Practice</span><span class=taxonomy-count>84</span></a></li>
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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><span class=taxonomy-count>68</span></a></li>
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</ul>
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</div>
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</aside>
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@ -543,7 +545,7 @@ Description One of the core operations in a relational database is joining two o
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<a href=https://alguidelines.dev/docs/navpatterns/>NAV Patterns Archive</a>
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</li>
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<li class=breadcrumb-item>
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<a href=https://alguidelines.dev/docs/navpatterns/patterns/>Patterns</a>
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<a href=https://alguidelines.dev/docs/navpatterns/patterns/>1. Patterns</a>
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</li>
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<li class=breadcrumb-item>
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<a href=https://alguidelines.dev/docs/navpatterns/patterns/queries/>Queries</a>
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@ -556,6 +558,18 @@ Description One of the core operations in a relational database is joining two o
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<div class=td-content>
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<h1>Use Queries to Replace Nested Loops</h1>
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<header class=article-meta>
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<div class="taxonomy taxonomy-terms-article taxo-tags">
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<h5 class=taxonomy-title>Tags:</h5>
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<ul class=taxonomy-terms>
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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>
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</ul>
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</div>
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<div class="taxonomy taxonomy-terms-article taxo-categories">
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<h5 class=taxonomy-title>Categories:</h5>
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<ul class=taxonomy-terms>
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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>
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</ul>
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</div>
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</header>
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<p><em>Originally by Bogdan Sturzoiu, Microsoft Development Center Copenhagen</em></p>
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<h2 id=abstract>Abstract</h2>
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@ -713,7 +727,7 @@ Description One of the core operations in a relational database is joining two o
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<h3 id=ideas-for-improvement>Ideas for Improvement</h3>
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<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>
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<div class="text-muted mt-5 pt-3 border-top">
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Last modified February 20, 2022: <a href=https://github.com/microsoft/alguidelines/commit/cceb0c945e0383599f497350ca254d5755edda65>Restructure for Docsy theme (cceb0c94)</a>
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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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</div>
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</div>
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</main>
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