Sql Server 查询正在执行的sql信息

SELECT  [Spid] = session_Id, ecid, [Database] = DB_NAME(sp.dbid),
[User] = nt_username,
[Status] = er.status,
[Wait] = wait_type, 
[Individual Query] = SUBSTRING(qt.text, er.statement_start_offset / 2, (CASE WHEN er.statement_end_offset = - 1 THEN LEN(CONVERT(NVARCHAR(MAX), qt.text)) * 2 ELSE er.statement_end_offset END - er.statement_start_offset) / 2),                       
[Parent Query] = qt.text,                       
Program = program_name, Hostname,                       
nt_domain, start_time
FROM  sys.dm_exec_requests er INNER JOIN  sys.sysprocesses sp ON er.session_id = sp.spid  
CROSS APPLY sys.dm_exec_sql_text(er.sql_handle) AS qt WHERE     session_Id > 50 /* Ignore system spids.*/ AND session_Id NOT IN (@@SPID)