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mysql中group by留下的数据是哪一条

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Release： 2016-06-06 09:40:01
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mysqlgroup by

group by分组后，会留下一条数据，请问留下的这条数据，我们可以指定吗？就是指定显示出来的那条数据是某组中的指定的某条数据。

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