explain plan是什么意思_explain plan中文

explain plan中文什么意思

[网络] 执行计划；解释计划；说明计划

explain: vt. 1.说明，阐明；解释。 2.说明…的理由，替…辩解。 explain one's behaviour 为自己的行为作辩解。 Please explain yourself. 1. 请你把意思说清楚。 2. 请你讲讲你为什么要那样做。 vi. 1.说明，阐明。 2. 辩解。 explain away 巧辩过去，把…解释清楚，把…解释过去。 explain oneself 为自己的行为作解释；说明自己心意[立场]。 explain ...as... 把…解释为。 adj. -able ,-er n.
explain to: 向某人解释
explain … as: 把……解释成
explain and understand: 解释及理解
explain away: 解释清楚; 为...辫护

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例句与用法

another problem of communication lies with managers who interpret and explain plans to subordinates .
另一个落在管理者身上的相互联系的问题是对下级人员解释和说明计划。
there is much more information shown with this new feature than with a @ # normal @ # explain plan and you don @ # t have to worry about all that formatting either
其中比“正规”的执行计划显示了更多信息，并且你也不必为格式化操心。
in order to tune memory we describe how to improve the sharing for memory; and the tuning for i / o mainly includes decreasing the contention of i / o by reasonable distribution of physical and logical strcture, adjusting the storing of data, and the optimizing for rollback segment and redo log . the tuning of application programs mainly includes the optimizing of sql, this paper describes how to excute sql trace and explain plan to get the estimate for the effect of the excution of sql, and then put forward some tips for tuning sql . while discussing the tuning of os and network, this paper emphasizes how to increase the resource serving for database by reducing the resource taking up by other applications, and how to improve the performance of network by reducing the flow on network
内存的优化主要是通过如何提高内存的共享来实现的；系统i/o的优化，则主要通过对数据库物理和逻辑结构的合理分布、数据的合理存储、以及对回滚段和重做日志调整的阐述，说明如何达到减少i/o争用的目的；应用系统的优化则主要是sql语句的优化，本文通过说明如何执行sql跟踪和解释计划从而获得对sql语句实际执行效果的评价，同时还给出sql语句优化的一些常用技巧；在讨论对操作系统和网络的优化时，本文着重介绍了如何减少其它应用所占用的资源，从而增大为数据库服务的资源，以及如何通过减少网络流量的方法来提高网络性能等方面加以阐述。

explain plan中文什么意思

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