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HomeDatabaseMysql Tutorialtoad 分析执行计划产生的影响

解决方式:重新创建plan_table,SQLgt; drop table PLAN_TABLE;SQLgt; @?/rdbms/admin/utlxplan这个做完以后,说问题解决了,具

生成环境和真实环境执行计划不一样,真实环境不走索引。测试环境几秒钟、真实环境2分多钟。

先上直接计划

[sql]

请注意这个 - 'PLAN_TABLE' is old version ,这个是神马意思?

原因,曾经使用toad的执行计划分析,所以执行了它自带的脚本生成的plan_table

解决方式:重新创建plan_table,

SQL> drop table PLAN_TABLE;

SQL> @?/rdbms/admin/utlxplan

这个做完以后,说问题解决了,具体就不知道了。呵呵,如果不走索引,可以看10053事件。10053事件下回补充

但是难道toad就不能随便用吗?不是的,,toad的执行计划可以使用TOAD_PLAN_TABLE 来存放嘛!

完工。

linux

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