解决Navicat连接MySQL数据库报 1146 - Table 'performance_schema.session_variables' doesn't exist
异常信息
管理员身份运行命令提示符窗口，进入到MySQL的安装bin目录下，写入以下命令后回车，再输入MySQL密码，等待完成
mysql_upgrade -u root -p --force
命令提示符打印信息
E:\develop\MySQL\MySQL_5.7\bin>mysql_upgrade -u root -p --force
Enter password: ****
Checking server version.
Running queries to upgrade MySQL server.
Checking system database.
mysql.columns_priv OK
mysql.db
