27 lines
667 B
Markdown
27 lines
667 B
Markdown
---
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title: "DeleteAll"
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tags: ["AL","Performance"]
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categories: ["Best Practice"]
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---
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_Created by waldo, Described by waldo_
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## Description
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When you perform a "DeleteAll" when there is nothing to delete, it will still perform a lock. When you for example perform a DeleteAll on an empty table, it will result in a table lock.
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Therefore it's good practice to always check if the table is empty when performing a DeleteAll.
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## Bad code
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```al
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EmptyTableWLD.SetRange(Code, 'AJ');
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EmptyTableWLD.DeleteAll(true);
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```
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## Good code
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```al
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EmptyTableWLD.SetRange(Code, 'AJ');
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if not EmptyTableWLD.IsEmpty() then
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EmptyTableWLD.DeleteAll(true);
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```
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