用户操作

1. 创建用户

CREATE USER 'username'@'host' IDENTIFIED BY 'password';
# create user 'test'@'localhost' identified by 'test1234';

2. 授权

grant privileges on db.table to 'username'@'host'
# grant select,update on test.user to 'test'@'localhost';

3. 创建用户同时授权

grant all privileges on *.* to 'username'@'host' identified by 'password';
# grant all privileges on test.* to 'test2'@'localhost' identified by 'test1234';

4. 切记执行 flush privileges;

flush privileges;

5. 收回权限

REVOKE privilege ON db.tablename FROM 'username'@'host';
# revoke update on test.user from 'test'@'localhost';

6. 删除用户

DROP USER 'username'@'host';
# drop user 'test'@'localhost';

7. 查询用户权力

show grants for 'username'@'host';
# show grants for 'test'@'localhost';