搜索的case sql语句中可以有多个布尔表达式吗?

问题描述

我正在尝试基于许多布尔表达式创建搜索到的case sql语句.

I'm trying to create a searched case sql statement based on a number of boolean expressions.

例如

select CASE a = b OR c = d OR e = f OR g = h
THEN 'x' ELSE 'y' END
from table_name

我一直收到以下错误:Incorrect syntax near '='.

I keep getting the following error: Incorrect syntax near '='.

我是在执行SQL中固有的错误/非法操作，还是可以解决此问题?如果可以修复，该怎么办?

Am I doing something that's inherently wrong/illegal in sql, or is this something I can fix? If it is fixable, how can I do it?

谢谢！

推荐答案

select CASE when ( a = b OR c = d OR e = f OR g = h )
THEN 'x' ELSE 'y' END
from table_name

格式为CASE..WHEN..THEN..ELSE..END.您只是错过了WHEN.

The format is CASE..WHEN..THEN..ELSE..END. You were just missing the WHEN.

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