SQL Server에서 CPU 사용율이 높은 쿼리 검색

sqlserver-cpu-usage-query.sql

SELECT TOP 20 
  [Average CPU used] = total_worker_time / qs.execution_count,
  [Total CPU used] = total_worker_time,
  [Last CPU used] = last_worker_time,
  [MAX CPU used] = max_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),
  [Query] = qt.text,
  DatabaseName = DB_NAME(qt.dbid),
  qs.creation_time,
  qs.last_execution_time
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