Sqlserver查询阻塞的SQL语句

1、筛选被阻塞的数据

 WITH    CTE_SID2( BSID, SID, sql_handle )
          AS ( SELECT   blocking_session_id ,
                        session_id ,
                        sql_handle
               FROM     sys.dm_exec_requests
               WHERE    blocking_session_id <> 0
               UNION ALL
               SELECT   A.blocking_session_id ,
                        A.session_id ,
                        A.sql_handle
               FROM     sys.dm_exec_requests A
                        JOIN CTE_SID2 B ON A.SESSION_ID = B.BSID
             )
    SELECT  C.BSID ,
            C.SID ,
            S.login_name ,
            S.host_name ,
            S.status ,
            S.cpu_time ,
            S.memory_usage ,
            S.last_request_start_time ,
            S.last_request_end_time ,
            S.logical_reads ,
            S.row_count ,
            q.text
    FROM    CTE_SID2 C 
            JOIN sys.dm_exec_sessions S ON C.sid = s.session_id
            CROSS APPLY sys.dm_exec_sql_text(C.sql_handle) Q
    ORDER BY sid

或者执行如下SQL，找到blocking_session_id

SELECT sqltext.TEXT, req.session_id, req.status, req.command, req.cpu_time, req.blocking_session_id, req.total_elapsed_time
FROM sys.dm_exec_requests req (NOLOCK)
CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS sqltext where blocking_session_id>0

2.根据spid查询具体的SQL语句

dbcc inputbuffer(59);

3.直接执行kill或分析原因

参考资料：https://blog.csdn.net/Ruishine/article/details/116698990

                 https://www.cnblogs.com/zhuque/archive/2012/11/08/2763343.html