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All versions of Microsoft SQL Server (not MySQL). Please also add a version-specific tag, like sql-server-2016, since it is often relevant to the question.

3 votes
1 answer
8k views

Invalid column name even after checking if it exists so it should skip the query part

I've got the following query: IF EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'NotificationTableLogRows' AND COLUMN_NAME = 'DestinationAddress') BEGIN UPDATE Notifi …
Michael van der Horst's user avatar
3 votes
1 answer
2k views

Two relations to same table in SQL Server

I've got two tables. When I delete a row in Table1, I want to set the ID of that row in all the rows of Table2 to NULL. I've got two relationships on Table1. The problem is: I can only set one delete …
Michael van der Horst's user avatar