Comments on: Backward Use of CASE in SQL http://blog.crankybit.com/backward-use-of-case-in-sql/ Take a byte out of tech! Wed, 08 Feb 2012 15:54:01 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Josh http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6317 Josh Fri, 09 Nov 2007 19:56:03 +0000 http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6317 Lol! When I first read about CASE statements in SQL way back when, it resonated with my understanding of SWITCH..CASE statements in C. Until this situation, I never even considered that the SQL equivalent would work any other way. Lol! When I first read about CASE statements in SQL way back when, it resonated with my understanding of SWITCH..CASE statements in C. Until this situation, I never even considered that the SQL equivalent would work any other way.

]]> By: todd sharp http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6315 todd sharp Fri, 09 Nov 2007 19:41:20 +0000 http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6315 Funny - there was a long time that I didn't know the "simple" method existed a while back! :) Funny – there was a long time that I didn’t know the “simple” method existed a while back! :)

]]> By: Josh http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6283 Josh Fri, 09 Nov 2007 13:59:50 +0000 http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6283 Thanks! I never realized this alternate syntax existed until a need like this called for it. Thanks! I never realized this alternate syntax existed until a need like this called for it.

]]> By: todd sharp http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6280 todd sharp Fri, 09 Nov 2007 13:41:35 +0000 http://blog.crankybit.com/backward-use-of-case-in-sql/#comment-6280 Technically you don't even need the 1 in your last example. There are two different flavors of CASE (as you've illustrated) - a simple case and a searched case. Here's what the docs show: Simple CASE function: CASE input_expression WHEN when_expression THEN result_expression [ ...n ] [ ELSE else_result_expression ] END Searched CASE function: CASE WHEN Boolean_expression THEN result_expression [ ...n ] [ ELSE else_result_expression ] END Technically you don’t even need the 1 in your last example. There are two different flavors of CASE (as you’ve illustrated) – a simple case and a searched case. Here’s what the docs show:

Simple CASE function:
CASE input_expression
WHEN when_expression THEN result_expression
[ ...n ]
[
ELSE else_result_expression
]
END

Searched CASE function:

CASE
WHEN Boolean_expression THEN result_expression
[ ...n ]
[
ELSE else_result_expression
]
END

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