本地通过命令行进入MySQL:
mysql -u用户名 -p密码
mysql -u用户名 -p 回车后输入密码
退出MySQL:
\q
exit
强行退出,Ctrl+Z
创建用户:
CREATE USER ‘用户名‘@‘域名‘ IDENTIFIED BY ‘密码‘;
域名:指定该用户在哪个主机上可以登陆,如果是本地用户可用localhost, 如果想让该用户可以从任意远程主机登陆,可以使用通配符%
密码:密码可以为空,如果为空则该用户可以不需要密码登陆服务器。
例子:
CREATE USER ‘dog‘@‘localhost‘ IDENTIFIED BY ‘123456‘;
CREATE USER ‘pig‘@‘192.168.1.101‘ IDENTIFIED BY ‘123456‘;
CREATE USER ‘pig‘@‘%‘ IDENTIFIED BY ‘123456‘;
CREATE USER ‘pig‘@‘%‘ IDENTIFIED BY ‘‘;
CREATE USER ‘pig‘@‘%‘;
删除用户:
DROP USER ‘用户名‘@‘域名‘;
例子:
DROP USER ‘pig‘@‘192.168.1.101‘;
DROP USER ‘pig‘@‘%‘;
给用户授权:
GRANT 权限 ON 数据库名.表名 TO ‘用户名‘@‘域名‘;
让该用户可以对指定数据库下指定的表,进行指定的操作,每项权限之间用逗号分隔,权限表见结尾
例子:
GRANT SELECT, INSERT ON test.user TO ‘pig‘@‘%‘;
GRANT ALL ON *.* TO ‘pig‘@‘%‘;
注意:
用以上命令授权的用户不能给其它用户授权,如果想让该用户可以授权,用以下命令:
GRANT 权限 ON 数据库名.表名 TO ‘用户名‘@‘域名‘ WITH GRANT OPTION;
撤销用户权限:
REVOKE 权限 ON 数据库名.表名 FROM ‘用户名‘@‘域名‘;
例子:
REVOKE SELECT ON *.* FROM ‘pig‘@‘%‘;
注意:
撤销的权限和库表必须是和授权时一致,如果撤销的权限和授权时不一致,则不会撤销该权限。
显示用户权限:
SHOW GRANTS FOR ‘用户名‘@‘域名‘;
例子:
SHOW GRANTS FOR ‘pig‘@‘%‘;
设置与更改用户密码:
对指定用户 SET PASSWORD FOR ‘用户名‘@‘域名‘ = PASSWORD(‘新密码‘);
对当前用户 SET PASSWORD = PASSWORD("新密码");
例子:
SET PASSWORD FOR ‘pig‘@‘%‘ = PASSWORD("123456");
查看有哪些数据库:
SHOW DATABASES;
查看当前在哪个数据库里:
SELECT DATABASE();
查看当前用户:
SELECT USER();
查看用户列表:
select host,user from mysql.user;
附表:在MySQL中的操作权限
ALTER | Allows use of ALTER TABLE. |
ALTER ROUTINE | Alters or drops stored routines. |
CREATE | Allows use of CREATE TABLE. |
CREATE ROUTINE | Creates stored routines. |
CREATE TEMPORARY TABLE | Allows use of CREATE TEMPORARY TABLE. |
CREATE USER | Allows use of CREATE USER, DROP USER, RENAME USER, and REVOKE ALL PRIVILEGES. |
CREATE VIEW | Allows use of CREATE VIEW. |
DELETE | Allows use of DELETE. |
DROP | Allows use of DROP TABLE. |
EXECUTE | Allows the user to run stored routines. |
FILE | Allows use of SELECT... INTO OUTFILE and LOAD DATA INFILE. |
INDEX | Allows use of CREATE INDEX and DROP INDEX. |
INSERT | Allows use of INSERT. |
LOCK TABLES | Allows use of LOCK TABLES on tables for which the user also has SELECT privileges. |
PROCESS | Allows use of SHOW FULL PROCESSLIST. |
RELOAD | Allows use of FLUSH. |
REPLICATION | Allows the user to ask where slave or master |
CLIENT | servers are. |
REPLICATION SLAVE | Needed for replication slaves. |
SELECT | Allows use of SELECT. |
SHOW DATABASES | Allows use of SHOW DATABASES. |
SHOW VIEW | Allows use of SHOW CREATE VIEW. |
SHUTDOWN | Allows use of mysqladmin shutdown. |
SUPER | Allows use of CHANGE MASTER, KILL, PURGE MASTER LOGS, and SET GLOBAL SQL statements. Allows mysqladmin debug command. Allows one extra connection to be made if maximum connections are reached. |
UPDATE | Allows use of UPDATE. |
USAGE | Allows connection without any specific privileges. |
原文地址:https://www.cnblogs.com/ikamu/p/8306714.html