REVOKE ALL PRIVILEGES ON *.* FROM developer;
FLUSH PRIVILEGES;
grant select, insert, update, delete on jyj_db.* to developer@'%' ;
FLUSH PRIVILEGES;
user解释:
user表中host列的值的意义
%
匹配所有主机
localhost
localhost不会被解析成IP地址,直接通过UNIXsocket连接
127.0.0.1
会通过TCP/IP协议连接,并且只能在本机访问;
::1
::1就是兼容支持ipv6的,表示同ipv4的127.0.0.1