查看SQL连接池当前已使用连接数

SELECT des.program_name
, des.login_name
, des.host_name
, COUNT(des.session_id) [Connections]
FROM sys.dm_exec_sessions des
INNER JOIN sys.dm_exec_connections DEC
ON des.session_id = DEC.session_id
WHERE des.is_user_process = 1
AND des.status != 'running'
GROUP BY des.program_name
, des.login_name
, des.host_name
HAVING COUNT(des.session_id) > 2
ORDER BY COUNT(des.session_id) DESC