时间:2021-07-01 10:21:17 帮助过:80人阅读
MYSQL:使用UPDATE修改用户名,无法登录的问题
1、创建一个用户test/test
[sql]
mysql> create user test identified by 'test';
Query OK, 0 rows affected (0.00 sec)
mysql> exit
Bye
2、使用test/test用户登录成功
[sql]
C:/Users/qxl>mysql -utest -ptest
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 25
Server version: 5.1.28-rc-community MySQL Community Server (GPL)
Type 'help;' or '/h' for help. Type '/c' to clear the buffer.
mysql> exit
Bye
3、使用root用户登录,修改test用户名为newuser
[sql]
C:/Users/qxl>mysql -uroot -p
Enter password: ****
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 27
Server version: 5.1.28-rc-community MySQL Community Server (GPL)
Type 'help;' or '/h' for help. Type '/c' to clear the buffer.
mysql> update mysql.user set user='newuser' where user='test';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> exit
Bye
4、使用newuser/test登录失败
[sql]
C:/Users/qxl>mysql -unewuser -ptest
ERROR 1045 (28000): Access denied for user 'newuser'@'localhost' (using password: YES)
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