SELECT  s2.dbid ,
        DB_NAME(s2.dbid) AS [数据库名] ,
        --s1.sql_handle ,
        ( SELECT TOP 1
                    SUBSTRING(s2.text, statement_start_offset / 2 + 1,
                              ( ( CASE WHEN statement_end_offset = -1
                                       THEN ( LEN(CONVERT(NVARCHAR(MAX), s2.text))
                                              * 2 )
                                       ELSE statement_end_offset
                                  END ) - statement_start_offset ) / 2 + 1)
        ) AS [语句] ,
        execution_count AS [执行次数] ,
        last_execution_time AS [上次开始执行计划的时间] ,
        total_worker_time AS [自编译以来执行所用的 CPU 时间总量（微秒）] ,
        last_worker_time AS [上次执行计划所用的 CPU 时间（微秒）] ,
        min_worker_time AS [单次执行期间曾占用的最小 CPU 时间（微秒）] ,
        max_worker_time AS [单次执行期间曾占用的最大 CPU 时间（微秒）] ,
        total_logical_reads AS [总逻辑读] ,
        last_logical_reads AS [上次逻辑读] ,
        min_logical_reads AS [最少逻辑读] ,
        max_logical_reads AS [最大逻辑读] ,
        total_logical_writes AS [总逻辑写] ,
        last_logical_writes AS [上次逻辑写] ,
        min_logical_writes AS [最小逻辑写] ,
        max_logical_writes AS [最大逻辑写]
FROM    sys.dm_exec_query_stats AS s1
        CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS s2
WHERE   s2.objectid IS NULL
ORDER BY last_worker_time DESC

------解决方案--------------------
SQL code

--计算SQL语句执行时间:
declare @date1 datetime
set @date1=getdate()
你的SQL语句
declare @date2 datetime
set @date2=getdate()
select datediff(ms,date1,date2)

------解决方案--------------------
--检查阻塞：
EXEC SP_WHO——BLK列中不为0的就是阻塞的SPID
--检查全部活动进程：
EXEC SP_WHO ‘ACTIVE’
--检查某用户当前进程：
EXEC SP_WHO ‘SA’
--检查阻塞的锁信息：
EXEC SP_LOCK SPID的值
--获得阻塞的T-SQL语句：
DBCC INPUTBUFFER (SPIN的值)
--查看锁住表的session_id：
select request_session_id,*
from sys.dm_tran_locks where 
resource_associated_entity_id=object_id('[TableName]')