MySQL用户授权

 # 查看用户拥有的权限

select * from mysql.user where user='syj'G 

# 授权的必要条件：需要登录root用户进行授权 # 

# 授权syj所有的权限，但是只能在本地登录数据库操作 

grant all privileges on *.* to 'syj'@'localhost' identified by 'passwd';

flush privileges;

# 授权syj所有的权限，允许在192.168.1.1网段内登录操作

grant select on *.* to 'syj'@'192.168.1.%' identified by 'passwd'; 

flush privileges;

# 授权syj只有select所有库的权限，但是只能在192.168.1.1网段内登录操作

grant select on *.* to 'syj'@'192.168.1.%' identified by 'passwd';

flush privileges; 

#  授权用户报错

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

pastingERROR 1819 (HY000): Your password does not satisfy the current policy requirements

# 解决方法

set global validate_password_policy=LOW;