sqlserver查询引起死锁的进程和执行的语句

客户现场经常数据库出现死锁情况，通过此语句可以排查出造成死锁的原因。

DECLARE @spid INT
DECLARE @blk INT
DECLARE @count INT
DECLARE @index INT
DECLARE @lock TINYINT
 
SET @lock=0
 
CREATE TABLE #temp_who_lock
  (
     id   INT IDENTITY(1, 1),
     spid INT,
     blk  INT
  )
 
--if @@error<>0 return @@error    
INSERT INTO #temp_who_lock
            (spid,
             blk)
SELECT 0,
       blocked
FROM   (SELECT *
        FROM   master..sysprocesses
        WHERE  blocked > 0)a
WHERE  NOT EXISTS(SELECT *
                  FROM   master..sysprocesses
                  WHERE  a.blocked = spid
                         AND blocked > 0)
UNION
SELECT spid,
       blocked
FROM   master..sysprocesses
WHERE  blocked > 0
 
--if @@error<>0 return @@error    
SELECT @count = Count(*),
       @index = 1
FROM   #temp_who_lock
 
--select @count,@index
 
--if @@error<>0 return @@error    
IF @count = 0
  BEGIN
      SELECT '没有阻塞和死锁信息' 
  --return 0    
  END
 
WHILE @index <= @count
  BEGIN
      IF EXISTS(SELECT 1
                FROM   #temp_who_lock a
                WHERE  id > @index
                       AND EXISTS(SELECT 1
                                  FROM   #temp_who_lock
                                  WHERE  id <= @index
                                         AND a.blk = spid))
        BEGIN
            SET @lock=1
 
            SELECT @spid = spid,
                   @blk = blk
            FROM   #temp_who_lock
            WHERE  id = @index
 
            SELECT  '引起数据库死锁的是: ' + Cast(@spid AS VARCHAR(10)) + '进程号,其执行的SQL语法如下' ;
 
            SELECT @spid,
                   @blk
 
        
 
            DBCC inputbuffer(@spid)
             
 
            DBCC inputbuffer(@blk)
        END
 
      SET @index=@index + 1
  END
 
IF @lock = 0
  BEGIN
      SET @index=1
 
      WHILE @index <= @count
        BEGIN
            SELECT @spid = spid,
                   @blk = blk
            FROM   #temp_who_lock
            WHERE  id = @index
 
            IF @spid = 0
              SELECT '引起阻塞的是:' + Cast(@blk AS VARCHAR(10)) + '进程号,其执行的SQL语法如下' 
            ELSE
              SELECT '进程号SPID：' + Cast(@spid AS VARCHAR(10)) + '被' + '进程号SPID：' + Cast(@blk AS VARCHAR(10)) + '阻塞,其当前进程执行的SQL语法如下'
 
            PRINT ( LTRIM(@spid) + ''+ LTRIM(@blk));
            if(@spid <> 0)
            BEGIN
               DBCC inputbuffer(@spid)   --
             END
 
            DBCC inputbuffer(@blk)   --引起阻塞语句
 
            SET @index=@index + 1
        END
  END
 
DROP TABLE #temp_who_lock
 
--return 0    
--KILL 54