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DECODE 实现大于小于的判断

2010-07-09 15:53:15| 分类： SQL&PL/SQL | 标签： |举报 |字号大中小订阅

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Decode 结合Sign可以实现大于小于的判断，以用在实现要求在同一条记录中既显示大于又显示小于某个数值。

Select Decode(sign(A-100),0,'EQUAL'),Decode(sign(A-100),1,'GREATER'),Decode(sign(A-100),1,'LESS') From T_TEST;

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