SQL SERVER 活动监视-sys.dm_exec_requests

sys.dm_exec_requests (Transact-SQL)应用：

针对 SQL Server 内正在执行的每个请求返回一行。sys.dm_exec_connections、sys.dm_exec_sessions 和sys.dm_exec_requests 服务器范围动态管理视图映射到 sys.sysprocesses 系统视图（先前为系统表）。

先标记下：http://blog.csdn.net/peter82/article/details/46558235

https://msdn.microsoft.com/en-us/library/ms177648.aspx

http://www.cnblogs.com/invinboy/archive/2010/03/11/1683838.html

SELECT      r.scheduler_id as 排程器識別碼,   
            status         as 要求的狀態,   
         r.session_id   as SPID,   
          r.blocking_session_id as BlkBy,   
          substring(   
              ltrim(q.text),   
             r.statement_start_offset/2+1,   
               (CASE  
               WHEN r.statement_end_offset = -1   
                THEN LEN(CONVERT(nvarchar(MAX), q.text)) * 2   
               ELSE r.statement_end_offset
               END - r.statement_start_offset)/2)           
               AS [正在執行的 T-SQL 命令],   
           r.cpu_time      as [CPU Time(ms)],   
          r.start_time    as [開始時間],   
           r.total_elapsed_time as [執行總時間],
           r.reads              as [讀取數],   
           r.writes             as [寫入數],   
           r.logical_reads      as [邏輯讀取數],   
           -- q.text, /* 完整的 T-SQL 指令碼 */   
         d.name               as [資料庫名稱] ,
         F.*  
FROM        sys.dm_exec_requests r
           CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS q   
          LEFT JOIN sys.databases d ON (r.database_id=d.database_id)   
          cross apply sys.dm_exec_query_plan(plan_handle)F
WHERE    r.session_id > 50 --AND r.session_id in  (97)
ORDER BY    r.total_elapsed_time desc