Which three tasks can be performed by using the performance Schema?()A.Finding queries that are not using indexesB.Finding rows that are locked by InnoDBC.Finding client connection attributesD.Finding the part of a code in which a single query is spending

题目
Which three tasks can be performed by using the performance Schema?()

A.Finding queries that are not using indexes

B.Finding rows that are locked by InnoDB

C.Finding client connection attributes

D.Finding the part of a code in which a single query is spending time

E.Finding the size of each table

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更多“Which three tasks can be performed by using the performance Schema?() ”相关问题

  • 第1题：

    安装MySQL数据库后，系统自动创建的数据库包括______。

    A．information_schema

    B．choose

    C．mysql

    D．performance_schema


    performance_schema;information_schema;mysql

  • 第2题：

    下列定义的外部中断0函数正确的是（）。

    A．void int0() interrupt 1 using 0

    B．void int0() interrupt 0 using 0

    C．void int0() interrupt 2 using 0

    D．void int0() interrupt 3 using 0


    void int0( ) interrupt 0 using 0

  • 第3题：

    安装MySQL数据库后，系统自动创建的数据库包括______。

    A．information_schema；

    B．Choose;

    C．Mysql；

    D．performance_schema；


    performance_schema;information_schema;mysql

  • 第4题：

    MySQL自带数据库中， 存储了系统的权限信息。

    A．information_schema

    B．mysql

    C．sakila

    D．performance_schema


    B

  • 第5题：

    mysql中哪个数据库记录了数据库元数据

    A．mysql

    B．information

    C．information_schema

    D．performance_schema


    C解析：表是所有数据库对象的基础。

  • 第6题：

    12、安装MySQL数据库后，系统自动创建的数据库包括______。

    A．information_schema

    B．choose

    C．mysql

    D．performance_schema


    information_schema;mysql;performance_schema

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