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  CentOS下如何修改MySQL的root密码

  1、用帐号登录mysql

  mysql –u root

  或#mysql –uroot –p

  2、改变用户数据库

  命令:mysql>use mysql

  mysql> use mysql
  Reading table information for completion of table and column names
  You can turn off this feature to get a quicker startup with -A

  Database changed

  3、修改密码

      密码要用password()函数进行加密!!!!

  命令:mysql> update user set password=password(‘root’) where user=’root’;

  mysql> update user set password=password(‘root’) where user=’root’;
  Query OK, 3 rows affected (0.00 sec)
  Rows matched: 3  Changed: 3  Warnings: 0

  4、刷新权限表

  命令:mysql> flush privileges;

  mysql> flush privileges;
  Query OK, 0 rows affected (0.00 sec)

  5、退出mysql并对mysql进行重启即可!!

  service mysqld restart