Depends which database is being used – some allow NULL as a valid entry for columns for a FK constraint. – Michael Shimmins 1 hour ago. Thank you. I use SQL Server. I did not set the FK yet, so I'm not sure if SQL Server allows nulls. …
Depends which database is being used – some allow NULL as a valid entry for columns for a FK constraint. – Michael Shimmins 1 hour ago. Thank you. I use SQL Server. I did not set the FK yet, so I'm not sure if SQL Server allows nulls. …
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