一, 創(chuàng)建用戶(hù):

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

說(shuō)明:
username - 你將創(chuàng)建的用戶(hù)名,

host - 指定該用戶(hù)在哪個(gè)主機(jī)上可以登陸,如果是本地用戶(hù)可用localhost, 如果想讓該用戶(hù)可以從任意遠(yuǎn)程主機(jī)登陸,可以使用通配符%.

password - 該用戶(hù)的登陸密碼,密碼可以為空,如果為空則該用戶(hù)可以不需要密碼登陸服務(wù)器.

例子: CREATE USER 'heshou'@'localhost' IDENTIFIED BY '123456';

CREATE USER ''heshou '@'192.168.1.101_' IDENDIFIED BY '123456';

CREATE USER ''heshou '@'%' IDENTIFIED BY '123456';

CREATE USER ''heshou '@'%' IDENTIFIED BY '';

CREATE USER ''heshou '@'%';

二,授權(quán):

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

說(shuō)明:
privileges - 用戶(hù)的操作權(quán)限,如SELECT , INSERT , UPDATE 等(詳細(xì)列表見(jiàn)該文最后面).如果要授予所的權(quán)限則使用ALL.;

databasename - 數(shù)據(jù)庫(kù)名,tablename-表名,如果要授予該用戶(hù)對(duì)所有數(shù)據(jù)庫(kù)和表的相應(yīng)操作權(quán)限則可用*表示, 如*.*.

例子: GRANT SELECT, INSERT ON test.user TO 'pig'@'%';

GRANT ALL ON *.* TO 'pig'@'%';

注意:用以上命令授權(quán)的用戶(hù)不能給其它用戶(hù)授權(quán),如果想讓該用戶(hù)可以授權(quán),用以下命令:

GRANT privileges ON databasename.tablename TO 'username'@'host' WITH GRANT OPTION;

三.設(shè)置與更改用戶(hù)密碼

命令:SET PASSWORD FOR 'username'@'host' = PASSWORD('newpassword');如果是當(dāng)前登陸用戶(hù)用SET PASSWORD = PASSWORD("newpassword");

例子: SET PASSWORD FOR 'heshou'@'%' = PASSWORD("123456");