>Of course this will return an empty set because you have only selected
>the test_id, try this;
>
>SELECT * FROM tests WHERE test_id IS NULL

Empty set <> "empty column"


Martijn Tonies
Database Workbench - tool for InterBase, Firebird, MySQL, NexusDB, Oracle &
MS SQL Server
Upscene Productions
http://www.upscene.com
My thoughts:
http://blog.upscene.com/martijn/
Database development questions? Check the forum!
http://www.databasedevelopmentforum.com


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