MySQL执行计划初探

-Mysql执行计划总结–html 1 执行计划概述 先看看一个执行计划 mysql> explain SELECT * FROM EMP , DAO_OBJECTS t1 , DAO_OBJECTS t2 WHERE deptno= t1.object_id AND t1.object_name=t2.object_name ; +----+-------------+-------+----

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