SQL Server查询Block情况

SELECT s.session_id
                ,r.STATUS
                ,r.blocking_session_id AS 'blocked_by'
                ,r.wait_type
                ,r.wait_resource
                ,CONVERT(VARCHAR, DATEADD(ms, r.wait_time, 0), 8) AS 'wait_time'
                ,r.cpu_time
                ,r.logical_reads
                ,r.reads
                ,r.writes
                ,CONVERT(VARCHAR, DATEADD(ms, r.total_elapsed_time, 0), 8) AS 'elapsed_time'
                ,CAST((
                                                '<?query --  ' + CHAR(13) + CHAR(13) + Substring(st.TEXT, (r.statement_start_offset / 2) + 1, (
                                                                                (
                                                                                                CASE r.statement_end_offset
                                                                                                                WHEN - 1
                                                                                                                                THEN Datalength(st.TEXT)
                                                                                                                ELSE r.statement_end_offset
                                                                                                                END - r.statement_start_offset
                                                                                                ) / 2
                                                                                ) + 1) + CHAR(13) + CHAR(13) + '--?>'
                                                ) AS XML) AS 'query_text'
                ,COALESCE(QUOTENAME(DB_NAME(st.dbid)) + N'.' + QUOTENAME(OBJECT_SCHEMA_NAME(st.objectid, st.dbid)) + N'.' + QUOTENAME(OBJECT_NAME(st.objectid, st.dbid)), '') AS 'stored_proc'
                --,qp.query_plan AS 'xml_plan'  -- uncomment (1) if you want to see plan
                ,r.command
                ,s.login_name
                ,s.host_name
                ,s.program_name
                ,s.host_process_id
                ,s.last_request_end_time
                ,s.login_time
                ,r.open_transaction_count
FROM sys.dm_exec_sessions AS s
INNER JOIN sys.dm_exec_requests AS r ON r.session_id = s.session_id
CROSS APPLY sys.dm_exec_sql_text(r.sql_handle) AS st
--OUTER APPLY sys.dm_exec_query_plan(r.plan_handle) AS qp -- uncomment (2) if you want to see plan
WHERE r.wait_type NOT LIKE 'SP_SERVER_DIAGNOSTICS%'
                OR r.session_id != @@SPID
ORDER BY r.cpu_time DESC
                ,r.STATUS
                ,r.blocking_session_id
                ,s.session_id