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mysql-MySQL数据库表查询优化

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Release： 2016-06-06 09:40:07
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mysql优化数据数据库

假如一个表中有10亿行数据，要查询的数据位置随意，则做一次查询大约需要多久，该怎么样调高查询效率。

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mysql 优化 数据 数据库
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