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mysql的数据库常用操作(添加用户)_MySQL

Jun 01, 2016 pm 01:42 PM
mysql database user

bitsCN.com mysql的数据库常用操作(添加用户) 1.Mysql添加用户 格式:grant select on 数据库.* to “用户名”@“登录主机” identified by "密码";   例1、增加一个用户test1密码为abc,让他可以在任何主机上登录,并对所有数据库有查询、插入、修改、删除的权限。首先用以root用户连入MYSQL,然后键入以下命令: grant select,insert,update,delete on *.* to “test1”@"%" Identified by "abc";  补充所有权限语句: 由例1得: 将执行权限(select,insert,....)改为all privileges,即表示拥有所有权限,包括创建数据库权限,删除数据库,已经不局限于在一个数据库内操作     GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456'; 例2、 增加一个用户test2密码为abc,让他只可以在localhost上登录,并可以对数据库mydb进行查询、插入、修改、删除的操作 (localhost指本地主机,即MYSQL数据库所在的那台主机),这样用户即使用知道test2的密码,他也无法从internet上直接访问数据 库,只能通过MYSQL主机上的web页来访问了。  grant select,insert,update,delete on mydb.* to “test2”@localhost identified by "abc"; 2.mysql查询所有用户mysql中所有用户的信息都存放在mysql.user表中。select user from mysql.user; 3.mysql服务的启动和停止net stop mysqlnet start mysql 4.登录mysql语法:  mysql -u 用户名 -p 用户密码 -h 主机ip     5.显示表结构describe 表名; 6.导出数据mysqldump -u root -p 数据库名 -h IP地址  >f:/a.sql 7.导入数据mysqldump -u root -p  --default-character-set=utf8 数据库名

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