====== mysql通用日志设置 ======
===== 查看配置 =====
show variables like '%general%';
|  general_log  |  OFF  |
|  general_log_file  |  /var/lib/mysql/iZ23goxo66aZ.log  |
===== 打开配置 =====
set @@global.general_log=1;  
|  general_log  |  ON  |
|  general_log_file  |  /var/lib/mysql/iZ23goxo66aZ.log  |
注意：打开通用日志后，执行查询sql，也可以打印在日志文件中
===== 关闭配置 =====
set @@global.general_log=0;  
|  general_log  |  OFF  |
|  general_log_file  |  /var/lib/mysql/iZ23goxo66aZ.log  |