检查近期死锁；定位到具体的对象。方便排查问题

/****************************************************************
* 检查近期死锁；定位到具体的对象。方便排查问题；
********************************************************************/

DECLARE @SessionName SysName

SELECT @SessionName = 'system_health'

IF OBJECT_ID('tempdb..#Events') IS NOT NULL BEGIN
DROP TABLE #Events
END

DECLARE @Target_File NVarChar(1000)
, @Target_Dir NVarChar(1000)
, @Target_File_WildCard NVarChar(1000)

SELECT @Target_File = CAST(t.target_data as XML).value('EventFileTarget[1]/File[1]/@name', 'NVARCHAR(256)')
FROM sys.dm_xe_session_targets t
INNER JOIN sys.dm_xe_sessions s ON s.address = t.event_session_address
WHERE s.name = @SessionName
AND t.target_name = 'event_file'

SELECT @Target_Dir = LEFT(@Target_File, Len(@Target_File) - CHARINDEX('\', REVERSE(@Target_File)))

SELECT @Target_File_WildCard = @Target_Dir + '\' + @SessionName + '_*.xel'

--Keep this as a separate table because it's called twice in the next query. You don't want this running twice.
SELECT DeadlockGraph = CAST(event_data AS XML)
, DeadlockID = Row_Number() OVER(ORDER BY file_name, file_offset)
INTO #Events
FROM sys.fn_xe_file_target_read_file(@Target_File_WildCard, null, null, null) AS F
WHERE event_data like '