MySQL8.0修改密码的正确姿势分享_Mysql_

mysql> USE mysql; Database changed mysql> UPDATE user SET authentication_string="123456" WHERE user="root"; Query OK, 1 row affected (0.39 sec) Rows matched: 1  Changed: 1  Warnings: 0 mysql> FLUSH privileges;  # 刷新保存 Query OK, 0 rows affected (0.13 sec)

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY "your_password"; mysql> USE mysql; Database changed mysql> ALTER USER 'root'@'localhost' IDENTIFIEED WITH mysql_native_password BY "markjun"; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IDENTIFIEED WITH mysql_native_password BY "markjun"' at line 1 mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY "markjun"; Query OK, 0 rows affected (0.18 sec) mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY "123456"; Query OK, 0 rows affected (0.08 sec) mysql> SELECT user, authentication_string FROM user; +------------------+------------------------------------------------------------------------+ | user | authentication_string | +------------------+------------------------------------------------------------------------+ | mysql.infoschema | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | mysql.session | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | mysql.sys | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 | +------------------+------------------------------------------------------------------------+ 4 rows in set (0.00 sec) mysql> FLUSH privileges; Query OK, 0 rows affected (0.38 sec) mysql> quit; Bye F:\MySQL\mysql-8.0.13-winx64\bin>mysql -u root -p Enter password: ******* ... mysql>

F:\MySQL\mysql-8.0.13-winx64\bin>mysql -u root -p Enter password: ******* ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) F:\MySQL\mysql-8.0.13-winx64\bin>mysql -u root Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 7 ... Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> USE mysql; Database changed mysql> SELECT user, authentication_string FROM user; +------------------+------------------------------------------------------------------------+ | user | authentication_string | +------------------+------------------------------------------------------------------------+ | mysql.infoschema | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | mysql.session | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | mysql.sys | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | root | 123456 | +------------------+------------------------------------------------------------------------+ 4 rows in set (0.34 sec) mysql> UPDATE user SET authentication_string="" WHERE user="root"; Query OK, 1 row affected (0.20 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> SELECT user, authentication_string FROM user; +------------------+------------------------------------------------------------------------+ | user | authentication_string | +------------------+------------------------------------------------------------------------+ | mysql.infoschema | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | mysql.session | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | mysql.sys | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | | root | | +------------------+------------------------------------------------------------------------+ 4 rows in set (0.00 sec) mysql> FLUSH privileges; Query OK, 0 rows affected (0.10 sec) mysql> quit; Bye