December 2002
Intermediate to advanced
928 pages
85h 29m
English
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NULLIF
NULLIF (expr1,expr2)
Compares expr1 to expr2. If they are equal, the function returns NULL; otherwise, it returns expr1. expr1 cannot be set to the literal NULL. New with Oracle9i.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.