CentOS下配置MySQL容許root用戶遠程登陸 Mysql爲了安全性,在默認狀況下用戶只容許在本地登陸 執行GRANT PRIVILEDGES受權時報語法錯誤 或者如下提示 Column count of mysql.user is wrong. Expected 43, found 42. Created with MySQL 50560, now running 50643. Please use mysql_upgrade to fix this error.按其提示執行mysql_upgrade