MySQL数据库命令行用户管理（咋个办呢 zgbn）

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MySQL数据库命令行用户管理

登录MySQL数据库

1. 登录MySQL

[root@dstest2-db ~]# mysql -uroot -p密码

字段	描述
root	最高权限用户名
密码	登录密码

2. 选择mysql数据库

mysql> use mysql;
... ...
Database changed

1. 查看数据库所有表

mysql> show tables;
+---------------------------+
| Tables_in_mysql           |
+---------------------------+
| columns_priv              |
... ...
| user                      |
+---------------------------+
31 rows in set (0.00 sec)

mysql> 

1. 查看当前用户

mysql> select host , user from user ;
+---------------+---------------+
| host          | user          |
+---------------+---------------+
| localhost     | mysql.session |
| localhost     | mysql.sys     |
| localhost     | root          |
+---------------+---------------+
3 rows in set (0.00 sec)

mysql> 

创建用户

命令:
CREATE USER 'username'@'host' IDENTIFIED BY 'password';

字段	描述	词典
username	☞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，从任意远程主机登陆可以使用通配符%	localhost %
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。

授权用户

1. 将数据库实例授权给用户

# 命令:
GRANT privileges ON databasename.tablename TO 'username'@'host';

字段	描述	词典
privileges	用户的操作权限，授予所的权限则使用ALL。	SELECT INSERT UPDATE 等（参见权限表） 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

2. 修改用户连接权限

命令:
GRANT ALL PRIVILEGES  ON *.* TO root@'%' IDENTIFIED BY "password" ;

创建一个拥有所有权限的root用户，可以远程任意主机连接。

权限操作表

权限	描述
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.