sql CW - 数据库 - 检查打开的连接

Posted 2021-05-13

SELECT IFNULL(usr,'All Users') user,IFNULL(hst,'All Hosts') host,COUNT(1) Connections
FROM
(
   SELECT user usr,LEFT(host,LOCATE(':',host) - 1) hst
   FROM information_schema.processlist
   WHERE user NOT IN ('system user','root')
) A GROUP BY usr,hst WITH ROLLUP;