1、创建用户

create user '用户名'@'IP地址' identified by '密码';    # 语法create user '用户名'@'localhost' identified by '密码';   # 本地可用账号create user '用户名'@'192.168.12.1' identified by '密码'; # 具体哪个ip可用账号create user '用户名'@'192.168.12.%' identified by '密码'; # 具体哪个网段可用账号create user '用户名'@'%' identified by '密码';      # 所有ip都可用账号

2、删除用户

drop user '用户名'@'IP地址';

3、修改用户

rename user '用户名'@'IP地址' to '新用户名'@'IP地址';

4、修改密码

set password for '用户名'@'IP地址' = password('新密码');

5、授权

grant 权限 on 数据库.表 to '用户'@'IP地址'    # 授权语法grant select on db1.* to 'zekai'@'%';   # db1下所有表授予select权限grant select on *.* to 'zekai'@'%';     # 所有数据库都授予select权限grant select,insert on *.* to 'zekai'@'%';  # 授予多个权限grant all privileges on *.* to 'zekai'@'%';            # 授予全部权限，除了创建用户

6、创建与授权联合使用

grant all privileges on *.* to "账号名"@"%" identified by "密码" with grant option;

注意：

　　每次授权完之后，一定要刷新授权

flush privileges;