Last Updated: 3/9/2026

Source row existence

Update a target column based on the existence of a source row:

import { sourceRowExistence } from ’./0010-source-row-existence’

:::info[More examples] The API documentation is packed with examples. The API docs are hosted here , but you can access the same documentation by hovering over functions/methods/classes in your IDE. The examples are always just one hover away!

For example, check out these sections:

• mergeInto method 
• using method 
• whenMatched method 
• thenUpdateSet method 
• thenDelete method 
• thenDoNothing method 
• whenNotMatched method 
• thenInsertValues method  :::