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msyql中Explain的用法详解(1/3)
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- 2016-06-07 17:52:281207browse
Explain在mysql的作用我想大家都明白,显示了mysql如何使用索引来处理select语句以及连接表。可以帮助选择更好的索引和写出更优化的查询语句。
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