SQLSERVER 查询阻塞SQL以及锁

• 查阻塞语句

--查阻塞语句
select text, * from sys.dm_exec_requests   er cross apply  sys.dm_exec_sql_text(er.sql_handle)
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• 查阻塞与锁

--查阻塞与锁
SELECT t1.resource_type AS [锁类型], DB_NAME(resource_database_id) AS [数据库名],
t1.resource_associated_entity_id AS [阻塞资源对象],t1.resource_description as [资源描述信息], t1.request_mode AS [请求的锁], 
t1.request_session_id AS [等待会话], t2.wait_duration_ms AS [等待时间],       
(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK)                      
	CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) 
    WHERE r.session_id = t1.request_session_id
) AS [等待会话执行的批SQL],
(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, 
		(CASE WHEN r.statement_end_offset = -1 
		THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 
		ELSE r.statement_end_offset END )/2) 
	FROM sys.dm_exec_requests AS r WITH (NOLOCK)
	CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt
	WHERE r.session_id = t1.request_session_id
) AS [等待会话执行的SQL],                    
t2.blocking_session_id AS [阻塞会话],                                        
(SELECT [text] FROM sys.sysprocesses AS p                                       
	CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) 
	WHERE p.spid = t2.blocking_session_id
) AS [阻塞会话执行的批SQL]
FROM sys.dm_tran_locks AS t1 WITH (NOLOCK)
INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK)
ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE);
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• 查询语句执行情况

SELECT TOP 1000 t.hostname,
                t.loginame,
                percent_complete,
        [session_id] ,
        der.[request_id] ,
        [start_time] AS '开始时间' ,
        der.[status] AS '状态' ,
        [command] AS '命令' ,
        dest.[text] AS 'sql语句' ,
        DB_NAME([database_id]) AS '数据库名' ,
        [blocking_session_id] AS '正在阻塞其他会话的会话ID' ,
        [wait_type] AS '等待资源类型' ,
        [wait_time] AS '等待时间' ,
        [wait_resource] AS '等待的资源' ,
        [reads] AS '物理读次数' ,
        [writes] AS '写次数' ,
        [logical_reads] AS '逻辑读次数' ,
        [row_count] AS '返回结果行数',
                t.hostname,
                t.loginame
FROM    sys.[dm_exec_requests] AS der
        CROSS APPLY sys.[dm_exec_sql_text](der.[sql_handle]) AS dest
                left JOIN sys.sysprocesses t ON t.spid=der.session_id
WHERE   [session_id] > 50
       -- AND DB_NAME(der.[database_id]) = 'gposdb'
ORDER BY [cpu_time] DESC
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