Home Database Mysql Tutorial MySQL数据库中Show命令用法详解

MySQL数据库中Show命令用法详解

Jun 07, 2016 pm 04:20 PM
mysql Order database usage Detailed explanation

MySQL中有很多的基本命令,show命令也是其中之一,在很多使用者中对show命令的使用还容易产生混淆,本文汇集了show命令的众多用法。 a. show tables或show tables from database_name; -- 显示当前数据库中所有表的名称。 b. show databases; -- 显示mysql中

   MySQL中有很多的基本命令,show命令也是其中之一,在很多使用者中对show命令的使用还容易产生混淆,本文汇集了show命令的众多用法。

  a. show tables或show tables from database_name; -- 显示当前数据库中所有表的名称。

  b. show databases; -- 显示mysql中所有数据库的名称。

  c. show columns from table_name from database_name; 或show columns from database_name.table_name; -- 显示表中列名称。

  d. show grants for user_name; -- 显示一个用户的权限,显示结果类似于grant 命令。

  e. show index from table_name; -- 显示表的索引。

  f. show status; -- 显示一些系统特定资源的信息,例如,,正在运行的线程数量。

  g. show variables; -- 显示系统变量的名称和值。

  h. show processlist; -- 显示系统中正在运行的所有进程,也就是当前正在执行的查询。大多数用户可以查看他们自己的进程,但是如果他们拥有process权限,就可以查看所有人的进程,包括密码。

  i. show table status; -- 显示当前使用或者指定的database中的每个表的信息。信息包括表类型和表的最新更新时间。

  j. show privileges; -- 显示服务器所支持的不同权限。

  k. show create database database_name; -- 显示create database 语句是否能够创建指定的数据库。

  l. show create table table_name; -- 显示create database 语句是否能够创建指定的数据库。

  m. show engies; -- 显示安装以后可用的存储引擎和默认引擎。

  n. show innodb status; -- 显示innoDB存储引擎的状态。

  o. show logs; -- 显示BDB存储引擎的日志。

  p. show warnings; -- 显示最后一个执行的语句所产生的错误、警告和通知。

  q. show errors; -- 只显示最后一个执行语句所产生的错误。

  r. show [storage] engines; --显示安装后的可用存储引擎和默认引擎。

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