Identifying Most Costly Queries by CPU

SELECT TOP 10


[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 [Average CPU used] DESC;