《MYSQL數據庫MySQL創建用戶與授權及撤銷用戶權限方法》要點：
本文介紹了MYSQL數據庫MySQL創建用戶與授權及撤銷用戶權限方法，希望對您有用。如果有疑問，可以聯系我們。
MYSQL必讀MySQL中創建用戶與授權的實現辦法.
MYSQL必讀運行情況：widnows xp professional + MySQL5.0
MYSQL必讀一, 創立用戶
MYSQL必讀敕令:CREATE USER 'username'@'host' IDENTIFIED BY 'password';
MYSQL必讀說明:username - 你將創建的用戶名, host - 指定該用戶在哪個主機上可以登陸,如果是本地用戶可用localhost, 如果想讓該用戶可以從任意遠程主機登陸,可以使用通配符%. password - 該用戶的登陸暗碼,暗碼可以為空,如果為空則該用戶可以不需要暗碼登陸mysql服務器.
MYSQL必讀例子:
MYSQL必讀
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'@'%';
MYSQL必讀二,受權
MYSQL必讀敕令:GRANT privileges ON databasename.tablename TO 'username'@'host'
MYSQL必讀說明: privileges - 用戶的操作權限,如SELECT , INSERT , UPDATE 等(詳細列表見該文最后面).如果要授予所的權限則使用ALL.;databasename - 數據庫名,tablename-表名,如果要授予該用戶對所有數據庫和表的相應操作權限則可用*表現, 如*.*.
MYSQL必讀例子:
MYSQL必讀
GRANT SELECT, INSERT ON test.user TO 'pig'@'%';
GRANT ALL ON *.* TO 'pig'@'%';
MYSQL必讀注意:用以上命令授權的用戶不克不及給其它用戶授權,如果想讓該用戶可以授權,用以下命令:
GRANT privileges ON databasename.tablename TO 'username'@'host' WITH GRANT OPTION;
MYSQL必讀三.設置與更改用戶暗碼
MYSQL必讀命令:SET PASSWORD FOR 'username'@'host' = PASSWORD('newpassword');如果是當前登岸用戶用SET PASSWORD = PASSWORD("newpassword");
MYSQL必讀例子: SET PASSWORD FOR 'pig'@'%' = PASSWORD("123456");
MYSQL必讀四.撤銷用戶權限
MYSQL必讀敕令: REVOKE privilege ON databasename.tablename FROM 'username'@'host';
MYSQL必讀說明: privilege, databasename, tablename - 同授權部門.
MYSQL必讀例子: REVOKE SELECT ON *.* FROM 'pig'@'%';
MYSQL必讀注意: 假如你在給用戶'pig'@'%'授權的時候是這樣的(或類似的):GRANT SELECT ON test.user TO 'pig'@'%', 則在使用REVOKE SELECT ON *.* FROM 'pig'@'%';命令并不克不及撤銷該用戶對test數據庫中user表的SELECT 操作.相反,如果授權使用的是GRANT SELECT ON *.* TO 'pig'@'%';則REVOKE SELECT ON test.user FROM 'pig'@'%';命令也不克不及撤銷該用戶對test數據庫中user表的Select 權限.(www.jb51.net 腳本學堂 )
MYSQL必讀具體信息可以用敕令SHOW GRANTS FOR 'pig'@'%'; 查看.
MYSQL必讀五.刪除了用戶
MYSQL必讀敕令: DROP USER 'username'@'host';
MYSQL必讀附表:在MySQL中的操作權限
MYSQL必讀
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 co妹妹and. Allows one extra connection to be made if maximum connections are reached.
UPDATE Allows use of UPDATE.
USAGE Allows connection without any specific privileges.
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