数据库时客户端提示 Cannot proceed because system tables used by Event Scheduler

在打开数据库时客户端提示“Cannot proceed because system tables used by Event Scheduler were found damaged at server start” 造成此原因是MySQL服务器的当前版本不兼容所有数据库的表 解决方法 1、linux、windows下解决方法类似 $PATH/mysql/bin/mysql_upgrade - u root -p 例如：/usr/local/mysql/bin/mysql_upgrade - u root -p     [回车输入密码即可] $PATH mysql安装路径 执行完后停止mysqld后再重新启动mysqld一次，问题即可解决。