查找阻塞

SELECT
             s.spid, BlockingSPID  =  s.blocked, DatabaseName  =   DB_NAME (s.dbid),
             s.program_name, s.loginame, ObjectName  =   OBJECT_NAME (objectid,                      s.dbid), Definition  =   CAST ( text   AS   VARCHAR ( MAX ))
  INTO         #Processes
  FROM       sys.sysprocesses s  -- where s.spid=1300
  CROSS  APPLY sys.dm_exec_sql_text (sql_handle)
  WHERE  s.spid  > 50

select   * From  #processes  where  blockingspid <> 0