元芳怎么了
一、连接远程数据库:1、显示密码如:MySQL连接远程数据库(192.168.5.116),端口“3306”,用户名为“root”,密码“123456”C:/>mysql -h192.168.5.116 -P 3306 -u root -p1234562、隐藏密码如:MySQL 连接本地数据库,用户名为“root”,C:/>mysql -hlocalhost -u root -pEnter password:二、配置mysql允许远程链接默认情况下,mysql帐号不允许从远程登陆,只能在localhost登录。本文提供了二种方法设置mysql可以通过远程主机进行连接。一、改表法在localhost登入mysql后,更改 "mysql" 数据库里的 "user" 表里的 "host"项,将"localhost"改称"%"例如: #mysql -u root-pEnter password:……mysql> mysql>update userset host = '%' where user = 'root'; mysql>select host,user from user;二、授权法例如:你想myuser使用mypassword(密码)从任何主机连接到mysql服务器的话。 mysql>GRANT ALLPRIVILEGES ON *.* TO 'myuser'@'%'IDENTIFIED BY 'mypassword' WITH GRANT OPTION; 如果你想允许用户myuser从ip为192.168.1.6的主机连接到mysql服务器,并使用mypassword作为密码 mysql>GRANT ALLPRIVILEGES ON *.* TO 'myuser'@'192.168.1.3'IDENTIFIED BY 'mypassword' WITH GRANT OPTION;mysql>FLUSHPRIVILEGES 使修改生效,就可以了常见问题:1、在采用法二授权法之后,无法在本地登录mysql(如:#mysql -u root -p -h192.168.5.116Enter password:ERROR 1045 (28000): Access denied for user'root'@'loadb116' (using password: YES)上例中loadb116是主机名.解决方法:1、这时可以使用:mysql -uroot -p 登录,进入到mysql后。mysql> grant all privileges on *.* to 'root'@'loadb116'identified by '123456' with grant option;Query OK, 0 rows affected(0.00 sec)mysql> flushprivileges;Query OK, 0 rows affected (0.00sec)2、在本地使用ip地址登录#mysql -u root -p -h192.168.5.116Enter password:Welcome to the MySQLmonitor. Commands end with ; or /g.Your MySQL connection id is 60Serverversion: 5.1.45 MySQL Community Server (GPL)Type 'help;' or '/h' forhelp. Type '/c' to clear the buffer.mysql>