From: "Harald Fuchs" <[EMAIL PROTECTED]> > Yes, of course. "NULL <> 'blah'" returns NULL, and that's perfectly > standards-conformant.
Furthermore, it's quite logical. NULL is meant to indicate that the value is unknown. If a value is unknown it can be anything. So, in the example `col` <> 'blah', col can be anything, including 'blah'. If you take that into consideration the only outcome of `col` <> 'blah' if `col` = NULL *must* be NULL! Fortunately there is function COALESCE() that will return the first argument that is not NULL. In case of NULL values you can use a default value for an expression: COALESCE( `col`*2, 14) will produce 14 if `col` is NULL. Regards, Jigal. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
