[MSSQL] 고부하 쿼리확인

SELECT TOP 100
 [Average CPU used] = total_worker_time / qs.execution_count
,[Total CPU used] = total_worker_time
,[Execution count] = qs.execution_count
,[Individual Query] = SUBSTRING (qt.text,qs.statement_start_offset/2, 
         (CASE WHEN qs.statement_end_offset = -1 
            THEN LEN(CONVERT(NVARCHAR(MAX), qt.text)) * 2 
          ELSE qs.statement_end_offset END - 
qs.statement_start_offset)/2)
,[Parent Query] = qt.text
,DatabaseName = DB_NAME(qt.dbid)
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt
ORDER BY [Total CPU used] DESC, [Average CPU used] DESC;

-- 다음 쿼리에서는 가장 많은 누적 CPU 사용량을 보이는 쿼리를 표시합니다.*/ 
      SELECT
    highest_cpu_queries.plan_handle, 
    highest_cpu_queries.total_worker_time,
    q.dbid,
     DB_NAME(q.dbid) as dbname,
    q.objectid,
    q.number,
    q.encrypted,
    q.[text]
from
    (select top 50 
        qs.plan_handle, 
        qs.total_worker_time
    from
        sys.dm_exec_query_stats qs
    order by qs.total_worker_time desc) as highest_cpu_queries
    cross apply sys.dm_exec_sql_text(plan_handle) as q
order by highest_cpu_queries.total_worker_time desc