mysql root密码修改 error1819

mysql> alter user 'root'@'localhost' IDENTIFIED BY 'nancy'; ERROR 1819 (HY000): Your password does not satisfy the current policy requirements mysql> SHOW VARIABLES LIKE 'validate_password%'; ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. ------修改密码策略密码长度 mysql> set global validate_password_policy=0; Query OK, 0 rows affected (0.00 sec) mysql> set global validate_password_length=4; Query OK, 0 rows affected (0.00 sec) mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'nancy'; Query OK, 0 rows affected (0.01 sec)