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thinkphp 中无法使用CASE更新数据吗？

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thinkphp 中无法使用CASE更新数据吗？

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顶部的语句在sql中直接执行时可以的，但是在tp中用query()执行更新就报错，为啥呢？


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query方法用于执行SQL查询操作
execute方法用于更新和写入数据的sql操作


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