Mysql安装完毕运行时没有mysql和performance_schema数据库_MySQL
Mysql问题 ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
Mysql安装完毕运行时没有 mysql 和 performance_schema 数据库
问题一:之前卸载未卸载干净
问题二:没有管理员权限进入
问题三:登录时,密码是空,使用的是匿名方式登录
Windows系统下
方法一:
在安装路径下的my.ini的[mysqld]字段加入: skip-grant-tables
重启mysql服务,这时的mysql不需要密码即可登录数据库然后进入mysql
mysql>use mysql;
mysql>update user set password=password('新密码') WHERE User='root';
mysql>flush privileges;
运行之后最后去掉my.ini中的skip-grant-tables,重启mysqld即可。
视频联接地址:http://www.tudou.com/programs/view/ZeHXZx4G6dk/
修改mysql密码方法二:
不使用修改my.ini重启服务的方法,通过非服务方式加skip-grant-tables运行mysql来修改mysql密码停止mysql服务
打开命令行窗口,在bin目录下使用mysqld-nt.exe启动,即在命令行窗口执行: mysqld-nt --skip-grant-tables
然后另外打开一个命令行窗口,登录mysql,此时无需输入mysql密码即可进入。
按以上方法修改好密码后,关闭命令行运行mysql的那个窗口,此时即关闭了mysql,如果发现mysql仍在运行的话可以结束掉对应进程来关闭。
启动mysql服务。

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