测试
先给主mysql解锁
> unlock tables;
删除一个表
> use db1; > show tables; > drop table help_category ;
去从 mysql 看一下
> use db1; > show tables;
没有 help_category。 ////////////////////////////////////////////////////////////////////////创建一个表
show create table user;
> CREATE TABLE `wangshaojun`
(
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT ‘‘,
`User` char(16) COLLATE utf8_bin NOT NULL DEFAULT ‘‘,
`Password` char(41) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL DEFAULT ‘‘,
`Select_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Insert_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Update_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Delete_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Create_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Drop_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Reload_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Shutdown_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Process_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`File_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Grant_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`References_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Index_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Alter_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Show_db_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Super_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Create_tmp_table_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Lock_tables_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Execute_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Repl_slave_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Repl_client_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Create_view_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Show_view_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Create_routine_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Alter_routine_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Create_user_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Event_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`Trigger_priv` enum(‘N‘,‘Y‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘N‘,
`ssl_type` enum(‘‘,‘ANY‘,‘X509‘,‘SPECIFIED‘) CHARACTER SET utf8 NOT NULL DEFAULT ‘‘,
`ssl_cipher` blob NOT NULL,
`x509_issuer` blob NOT NULL,
`x509_subject` blob NOT NULL,
`max_questions` int(11) unsigned NOT NULL DEFAULT ‘0‘,
`max_updates` int(11) unsigned NOT NULL DEFAULT ‘0‘,
`max_connections` int(11) unsigned NOT NULL DEFAULT ‘0‘,
`max_user_connections` int(11) unsigned NOT NULL DEFAULT ‘0‘,
PRIMARY KEY (`Host`,`User`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT=‘Users and global privileges‘;
这一串是复制的上面那条命令里面的,
查看列表
> show tables;
多了一个 wangshaojun 表
在从mysql 查看,一样多了一个表:wangshaojun
//////////////////////////////////////////////////////////////////////////////////////
主 删掉db1 库,查看库,没有db1了。
> drop database db1; > show databases;
从查看db1下的表,报错。查看库,没有db1了
> show tables; > show databases;