mssql 부하쿼리 확인

SELECT TOP 100 (A.TOTAL_WORKER_TIME/A.EXECUTION_COUNT) AS [AVG_CPU_TIME] , 
CONVERT(VARCHAR, LAST_EXECUTION_TIME) AS 'LAST_EXECUTION_TIME', 
TOTAL_PHYSICAL_READS, 
SUBSTRING(B.TEXT, A.STATEMENT_START_OFFSET/2,(CASE WHEN A.STATEMENT_END_OFFSET = -1 THEN LEN(CONVERT(NVARCHAR(MAX), B.TEXT)) *2 ELSE A.STATEMENT_END_OFFSET END - A.STATEMENT_START_OFFSET)/2) AS QUERY_TEXT , DBNAME = UPPER(DB_NAME(B.DBID)) , B.OBJECTID AS 'OBJECT_ID' 
FROM SYS.DM_EXEC_QUERY_STATS A CROSS APPLY SYS.DM_EXEC_SQL_TEXT(A.SQL_HANDLE) AS B 
ORDER BY [AVG_CPU_TIME] DESC