SqlServer死锁与阻塞检测脚本

  1 IF EXISTS (SELECT * FROM sysobjects WHERE [name] = ‘sp_Lock_Scan‘)
  2     DROP PROCEDURE sp_Lock_Scan
  3 GO
  4
  5 CREATE PROCEDURE sp_Lock_Scan
  6 AS
  7     DECLARE @SPID INT
  8     DECLARE @BLK INT
  9     DECLARE @Count INT
 10     DECLARE @Counter INT
 11     DECLARE @LOCK BIT
 12
 13     CREATE TABLE #Temp
 14     (
 15         [Id] INT IDENTITY
 16         ,[SPID] INT
 17         ,[BLOCK] INT
 18     )
 19
 20     SELECT @LOCK = 0
 21
 22     IF @@ERROR <> 0 RETURN @@ERROR
 23
 24     INSERT INTO #Temp
 25     (
 26         [SPID], [BLOCK]
 27     )
 28     SELECT
 29         0, [blocked]
 30     FROM
 31         (
 32             SELECT * FROM [master]..[sysprocesses] WHERE [blocked] > 0
 33         ) a
 34     WHERE
 35         NOT EXISTS
 36         (
 37             SELECT * FROM [master]..[sysprocesses] WHERE a.[blocked] = [spid] AND [blocked] > 0
 38         )
 39     UNION
 40         SELECT [spid], [blocked] FROM [master]..[sysprocesses] WHERE [blocked] > 0
 41
 42     IF @@ERROR <> 0 RETURN @@ERROR
 43
 44     SELECT @Count = COUNT(*), @Counter = 1 FROM #Temp
 45
 46     IF @@ERROR <> 0 RETURN @@ERROR
 47
 48     IF @Count = 0
 49         BEGIN
 50             SELECT N‘没有阻塞和死锁信息‘ [ScanMessage]
 51             RETURN 0
 52         END
 53     ELSE
 54         BEGIN
 55             WHILE @Counter <= @Count
 56                 BEGIN
 57                     IF EXISTS
 58                         (
 59                             SELECT * FROM #Temp a
 60                             WHERE
 61                                 a.[Id] > @Counter
 62                             AND
 63                                 EXISTS
 64                                 (
 65                                     SELECT * FROM #Temp WHERE [Id] <= @Counter AND a.[BLOCK] = [SPID]
 66                                 )
 67                         )
 68                         BEGIN
 69                             SELECT @LOCK = 1
 70
 71                             SELECT @SPID = [SPID], @BLK = [BLOCK] from #Temp WHERE [Id] = @Counter
 72
 73                             SELECT N‘引起数据库死锁的是：【‘ + CAST(@SPID AS NVARCHAR(255)) + N‘】进程,其执行的SQL语言如下‘ [ScanMessage]
 74
 75                             SELECT @SPID [SPID], @BLK [BLOCKED]
 76
 77                             DBCC INPUTBUFFER(@SPID)
 78                             DBCC INPUTBUFFER(@BLK)
 79                         END
 80                     SELECT @Counter = @Counter + 1
 81                 END
 82
 83             IF @LOCK = 0
 84                 BEGIN
 85                     SELECT @Counter = 1
 86
 87                     WHILE @Counter <= @Count
 88                         BEGIN
 89                             SELECT @SPID = [SPID], @BLK = [BLOCK] FROM #Temp where [Id] = @Counter
 90
 91                             IF @SPID = 0
 92                                 SELECT N‘引起阻塞的是：【‘+ CAST(@BLK AS NVARCHAR(255)) + ‘】，其执行的SQL语法如下‘ [ScanMessage]
 93                             ELSE
 94                                 SELECT N‘进程【‘ + CAST(@SPID AS NVARCHAR(255)) + N‘】被进程【‘ + CAST(@BLK AS NVARCHAR(255)) + N‘】阻塞，当前进程的SQL语法如下‘ [ScanMessage]
 95
 96                             DBCC INPUTBUFFER(@SPID)
 97                             DBCC INPUTBUFFER(@BLK)
 98
 99                             SELECT @Counter = @Counter + 1
100                         END
101                 END
102         END
103 RETURN 0
104 GO