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mysql“ Every derived table must have its own alias”问题

添加日期:2014-10-01 21:51:15 发布:smiling 
在mysql中查询时发现mysql提示Every derived table must have its own alias错误了,意思就是要有一个别名了,这个问题就这么解决了 我的查询语句:select count(*) from (select * from ...