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sql之透视

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Release: 2016-06-07 17:37:13
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1、透视原理:就是将查询结果进行转置 下面就举例来说明: 执行下面语句:检查是否含有表 dbo.Orders,如果有就将表删除: (,) dbo.Orders

1、透视原理:就是将查询结果进行转置 

 下面就举例来说明:

执行下面语句:检查是否含有表 dbo.Orders,,如果有就将表删除:

(,) dbo.Orders

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