http://codecube.net/2008/08/boolean-magic/ Joel Martinez' weblog Mon, 22 Feb 2010 12:34:46 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://codecube.net/2008/08/boolean-magic/comment-page-1/#comment-512 Peter Mon, 01 Sep 2008 07:50:49 +0000 http://codecube.net/?p=74#comment-512 Second Björn on that, (@regionid is null OR @regionid = rc.regionid) is the way to go. If @regionid is null or missing then (@region is null) evaluates to true. If @regionid is not null, the second part will be evaluated. Second Björn on that, (@regionid is null OR @regionid = rc.regionid) is the way to go. If @regionid is null or missing then (@region is null) evaluates to true. If @regionid is not null, the second part will be evaluated.

]]> http://codecube.net/2008/08/boolean-magic/comment-page-1/#comment-505 Joel Martinez Thu, 28 Aug 2008 15:02:36 +0000 http://codecube.net/?p=74#comment-505 well played, you know what ... I think you're right Björn :-D you get the prize! well played, you know what … I think you’re right Björn you get the prize!

]]> http://codecube.net/2008/08/boolean-magic/comment-page-1/#comment-504 Björn Thu, 28 Aug 2008 10:57:16 +0000 http://codecube.net/?p=74#comment-504 Hm, I do not know SQL too well but shouldn't something like (@regionid is null OR @regionid = rc.regionid) result in the same? I mean how's (true and true) OR (not evaluated) different from (true OR not evaluated)? Hm, I do not know SQL too well but shouldn’t something like (@regionid is null OR @regionid = rc.regionid) result in the same? I mean how’s (true and true) OR (not evaluated) different from (true OR not evaluated)?

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