日常SQL数据库死锁跟踪及处理
DECLARE @spid INT
DECLARE @blk INT
DECLARE @count INT
DECLARE @index INT
DECLARE @lock TINYINT
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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
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