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HomeDatabaseMysql TutorialMySQL 用户管理和权限管理_MySQL

<br>show grants for wzhao;<br>grant ALL on *.* to 'wzhao'@'%';<br><br>----------------------------------------------------<br>GRANT SELECTINSERTUPDATEDELETECREATEDROP, RELOAD, SHUTDOWN, PROCESS, FILE,REFERENCESINDEXALTER, SHOW DATABASES, SUPER, CREATE TEMPORARY TABLES, LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT  ON *.* TO 'shsadmin'@'%'IDENTIFIED BY 'f,d,r5080' WITH GRANT OPTION;<br><br><br>GRANT SELECTINSERTUPDATEDELETECREATEDROP, RELOAD, SHUTDOWN, PROCESS, FILE,REFERENCESINDEXALTER, SHOW DATABASES, SUPER, CREATE TEMPORARY TABLES, LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT  ON *.* TO 'shsadmin'@'localhost'IDENTIFIED BY 'f,d,r5080' WITH GRANT OPTION;<br><br>用户管理mysql>use mysql;查看mysql> select host,user,password from user ;创建mysql> create user  zx_root   IDENTIFIED by 'xxxxx';   //identified by 会将纯文本密码加密作为散列值存储修改mysql>rename   user  feng  to   newuser;//mysql 5之后可以使用,之前需要使用update 更新user表删除mysql>drop user newuser;   //mysql5之前删除用户时必须先使用revoke 删除用户权限,然后删除用户,mysql5之后drop 命令可以删除用户的同时删除用户的相关权限更改密码mysql> set password for zx_root =password('xxxxxx');<br>mysql> update  mysql.user  set  password=password('xxxx')  where user='otheruser'<br>查看用户权限mysql> show grants for zx_root;赋予权限mysql> grant select on dmc_db.*  to zx_root;回收权限mysql> revoke  select on dmc_db.*  from  zx_root;  //如果权限不存在会报错 上面的命令也可使用多个权限同时赋予和回收,权限之间使用逗号分隔mysql> grant select,update,delete  ,insert  on dmc_db.*  to  zx_root;如果想立即看到结果使用flush  privileges ;命令更新  设置权限时必须给出一下信息1,要授予的权限2,被授予访问权限的数据库或表3,用户名grant和revoke可以在几个层次上控制访问权限1,整个服务器,使用 grant ALL  和revoke  ALL2,整个数据库,使用on  database.*3,特点表,使用on  database.table4,特定的列5,特定的存储过程 user表中host列的值的意义%              匹配所有主机localhost    localhost不会被解析成IP地址,直接通过UNIXsocket连接127.0.0.1      会通过TCP/IP协议连接,并且只能在本机访问;::1                 ::1就是兼容支持ipv6的,表示同ipv4的127.0.0.1  

grant 普通数据用户,查询、插入、更新、删除 数据库中所有表数据的权利。

grant select on testdb.* to common_user@’%’

grant insert on testdb.* to common_user@’%’

grant update on testdb.* to common_user@’%’

grant delete on testdb.* to common_user@’%’

或者,用一条 MySQL 命令来替代:

grant select, insert, update, delete on testdb.* to common_user@’%’

9>.grant 数据库开发人员,创建表、索引、视图、存储过程、函数。。。等权限。

grant 创建、修改、删除 MySQL 数据表结构权限。

grant create on testdb.* to developer@’192.168.0.%’;

grant alter on testdb.* to developer@’192.168.0.%’;

grant drop on testdb.* to developer@’192.168.0.%’;

grant 操作 MySQL 外键权限。

grant references on testdb.* to developer@’192.168.0.%’;

grant 操作 MySQL 临时表权限。

grant create temporary tables on testdb.* to developer@’192.168.0.%’;

grant 操作 MySQL 索引权限。

grant index on testdb.* to developer@’192.168.0.%’;

grant 操作 MySQL 视图、查看视图源代码 权限。

grant create view on testdb.* to developer@’192.168.0.%’;

grant show view on testdb.* to developer@’192.168.0.%’;

grant 操作 MySQL 存储过程、函数 权限。

grant create routine on testdb.* to developer@’192.168.0.%’; -- now, can show procedure status

grant alter routine on testdb.* to developer@’192.168.0.%’; -- now, you can drop a procedure

grant execute on testdb.* to developer@’192.168.0.%’;

10>.grant 普通 DBA 管理某个 MySQL 数据库的权限。

grant all privileges on testdb to dba@’localhost’

其中,关键字 “privileges” 可以省略。

11>.grant 高级 DBA 管理 MySQL 中所有数据库的权限。

grant all on *.* to dba@’localhost’

12>.MySQL grant 权限,分别可以作用在多个层次上。

1. grant 作用在整个 MySQL 服务器上:

grant select on *.* to dba@localhost; -- dba 可以查询 MySQL 中所有数据库中的表。

grant all on *.* to dba@localhost; -- dba 可以管理 MySQL 中的所有数据库

2. grant 作用在单个数据库上:

grant select on testdb.* to dba@localhost; -- dba 可以查询 testdb 中的表。

3. grant 作用在单个数据表上:

grant select, insert, update, delete on testdb.orders to dba@localhost;

4. grant 作用在表中的列上:

grant select(id, se, rank) on testdb.apache_log to dba@localhost;

5. grant 作用在存储过程、函数上:

grant execute on procedure testdb.pr_add to ’dba’@’localhost’

grant execute on function testdb.fn_add to ’dba’@’localhost’

注意:修改完权限以后 一定要刷新服务,或者重启服务,刷新服务用:FLUSH PRIVILEGES。 <br>
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