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| From | Erland Sommarskog <esquel@sommarskog.se> |
| Newsgroups | comp.databases.ms-sqlserver |
| Subject | Re: CASE issue |
| Date | Mon, 24 Nov 2014 23:37:12 +0100 |
| Organization | Erland Sommarskog |
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Lennart Jonsson (erik.lennart.jonsson@gmail.com) writes: > I think (don't have time to look it up now) the SQL-standard says that > the result of the CASE statement is the first condition that evaluates > to true. From your answer I get the impression that this is not true for > SQL-server, correct? That is indeed true. The issue is that the expression on the left-hand side is reevaluated for every branch in the CASE. newid() is a function that returns a randomly generated GUID, so it is a bit of a special case. -- Erland Sommarskog, Stockholm, esquel@sommarskog.se
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CASE issue "twenty-six@b-mint.net" <twenty-six@b-mint.net> - 2014-11-24 10:22 +0000
Re: CASE issue Erland Sommarskog <esquel@sommarskog.se> - 2014-11-24 11:26 +0000
Re: CASE issue bradbury9 <ray.bradbury9@gmail.com> - 2014-11-24 04:16 -0800
Re: CASE issue Erland Sommarskog <esquel@sommarskog.se> - 2014-11-24 14:28 +0000
Re: CASE issue Erland Sommarskog <esquel@sommarskog.se> - 2014-11-28 22:47 +0100
Re: CASE issue Jim <jgeissman@socal.rr.com> - 2014-11-28 17:19 -0800
Re: CASE issue "twenty-six@b-mint.net" <twenty-six@b-mint.net> - 2014-11-24 13:32 +0000
Re: CASE issue Erland Sommarskog <esquel@sommarskog.se> - 2014-11-24 14:25 +0000
Re: CASE issue "twenty-six@b-mint.net" <twenty-six@b-mint.net> - 2014-11-24 16:06 +0000
Re: CASE issue Lennart Jonsson <erik.lennart.jonsson@gmail.com> - 2014-11-24 17:18 +0100
Re: CASE issue Erland Sommarskog <esquel@sommarskog.se> - 2014-11-24 23:37 +0100
Re: CASE issue Lennart Jonsson <erik.lennart.jonsson@gmail.com> - 2014-11-25 06:25 +0100
Re: CASE issue Jim <jgeissman@socal.rr.com> - 2014-11-28 16:07 -0800
Re: CASE issue Erland Sommarskog <esquel@sommarskog.se> - 2014-11-29 10:43 +0100
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