Tuesday, 26 August 2025

SQLDBA- Deadlock graph query

 


Dead lock graph query

DECLARE @xelfilepath NVARCHAR(260)

SELECT @xelfilepath = dosdlc.path

FROM sys.dm_os_server_diagnostics_log_configurations AS dosdlc;

SELECT @xelfilepath = @xelfilepath + N'system_health_*.xel'

 DROP TABLE IF EXISTS  #TempTable

 SELECT CONVERT(XML, event_data) AS EventData

        INTO #TempTable FROM sys.fn_xe_file_target_read_file(@xelfilepath, NULL, NULL, NULL)

         WHERE object_name = 'xml_deadlock_report'

SELECT EventData.value('(event/@timestamp)[1]', 'datetime2(7)') AS UtcTime, 

            CONVERT(DATETIME, SWITCHOFFSET(CONVERT(DATETIMEOFFSET, 

      EventData.value('(event/@timestamp)[1]', 'VARCHAR(50)')), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) AS LocalTime, 

            EventData.query('event/data/value/deadlock') AS XmlDeadlockReport

     FROM #TempTable

     ORDER BY UtcTime DESC;

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