mysql的root密码怎么修改

      本篇内容介绍了“mysql的root密码怎么修改”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
 
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)
 
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