| List: | General Discussion | « Previous MessageNext Message » | |
| From: | Martijn Tonies | Date: | October 31 2006 8:06am |
| Subject: | Re: finding NULL records | ||
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>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
| Thread | ||
|---|---|---|
| • finding NULL records | Alan Nilsson | 31 Oct |
| • RE: finding NULL records | Jay Blanchard | 31 Oct |
| • Re: finding NULL records | Alan Nilsson | 31 Oct |
| • Re: finding NULL records | Chris | 31 Oct |
| • Re: finding NULL records | Martijn Tonies | 31 Oct |
| • RE: finding NULL records | Jay Blanchard | 31 Oct |
| • Re: finding NULL records | Martijn Tonies | 31 Oct |
| • RE: finding NULL records | Jay Blanchard | 31 Oct |
| • RE: finding NULL records | Jerry Schwartz | 31 Oct |
| • Re: finding NULL records | Martijn Tonies | 31 Oct |
| • Re: finding NULL records | mizioumt | 15 Nov |
| • RE: finding NULL records | Jerry Schwartz | 15 Nov |
| • Re: finding NULL records | Joerg Bruehe | 16 Nov |
| • Re: finding NULL records | Joerg Bruehe | 16 Nov |
| • Re: finding NULL records | mizioumt | 17 Nov |
| • Re: finding NULL records | mizioumt | 17 Nov |
