added files from swmgmt03

deadlock analysis from extended event ring buffer.sql

@@ -0,0 +1,12 @@
+SELECT
+    CAST(event_data.value('(event/data/value)[1]', 'nvarchar(max)') AS XML) AS DeadlockGraphXml
+FROM (
+    SELECT CAST(target_data AS XML) AS TargetData
+    FROM sys.dm_xe_sessions AS s
+    JOIN sys.dm_xe_session_targets AS t
+      ON s.address = t.event_session_address
+    WHERE s.name = 'deadLocks'
+      AND t.target_name = 'ring_buffer'
+) AS SessionData
+CROSS APPLY TargetData.nodes('//RingBufferTarget/event') AS EventNodes(event_data)
+WHERE event_data.value('@name', 'nvarchar(100)') IN ('xml_deadlock_report', 'database_xml_deadlock_report');