ERROR 3009 (HY000): Column count of mysql.user is wrong. Expected 45, found 42. Created with MySQL 50560, now running 50725. Please use mysql_upgrade
centos7.5 登入mysql,进行授权报错 问题: 原因: 解决方法: ...
原文：MySQL ERROR 3009 (HY000): Column count of mysql.user is wrong. Expected 45, found 42. Created with MySQL 50560, now running 50729. Please use mysql_upgrade to fix this error.
.产生原因 在卸载原有的mysql . 之后，安装了mysql . ，进入数据库后，我发现原有的数据库都还在，但是在创建用户的时候报错 原因：错误是由于你曾经升级过数据库，升级完后没有使用 mysql upgrade升级数据结构造成的。 解决办法：更新数据库 mysql upgrade uroot p 然后进入数据库，执行语句 这次没有报错 参考链接： https: blog.csdn.net ...
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