在放大镜下，你可以看到每一片雪花都是一幅幅精美的图案：有的是晶莹的薄片，有的像白亮的银针，有的像一把张开的小扇，有的像夜空的星星……
注:我的运行环境是widnows xp professional + MySQL5.0 一, 创建用户: 命令:CREATE USER 'username'@'host' IDENTIFIED BY 'password'; 说明:username - 你将创建的用户名, host - 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%. password - 该用户的登陆密码,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_' IDENDIFIED BY '123456';
CREATE USER 'pig'@'%' IDENTIFIED BY '123456';
CREATE USER 'pig'@'%' IDENTIFIED BY '';
CREATE USER 'pig'@'%'; 二,授权: 命令:GRANT privileges ON databasename.tablename TO 'username'@'host' 说明: privileges - 用户的操作权限,如SELECT , INSERT , UPDATE 等(详细列表见该文最后面).如果要授予所的权限则使用ALL.;databasename - 数据库名,tablename-表名,如果要授予该用户对所有数据库和表的相应操作权限则可用*表示, 如*.*. 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 privileges ON databasename.tablename TO 'username'@'host' WITH GRANT OPTION; 三.设置与更改用户密码
命令:SET PASSWORD FOR 'username'@'host' = PASSWORD('newpassword');如果是当前登陆用户用SET PASSWORD = PASSWORD("newpassword"); 例子: SET PASSWORD FOR 'pig'@'%' = PASSWORD("123456"); 四.撤销用户权限
命令: REVOKE privilege ON databasename.tablename FROM 'username'@'host'; 说明: privilege, databasename, tablename - 同授权部分. 例子: REVOKE SELECT ON *.* FROM 'pig'@'%'; 注意: 假如你在给用户'pig'@'%'授权的时候是这样的(或类似的):GRANT SELECT ON test.user TO 'pig'@'%', 则在使用REVOKE SELECT ON *.* FROM 'pig'@'%';命令并不能撤销该用户对test数据库中user表的SELECT 操作.相反,如果授权使用的是GRANT SELECT ON *.* TO 'pig'@'%';则REVOKE SELECT ON test.user FROM 'pig'@'%';命令也不能撤销该用户对test数据库中user表的Select 权限. 具体信息可以用命令SHOW GRANTS FOR 'pig'@'%'; 查看. 五.删除用户
命令: DROP USER 'username'@'host'; 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. |
到此这篇关于MySQL创建用户与授权方法就介绍到这了。只有经历过地狱般的折磨，才有征服天堂的力量。只有流过血的手指才能弹出世间的绝唱。更多相关MySQL创建用户与授权方法内容请查看相关栏目，小编编辑不易，再次感谢大家的支持！
