Hi, I found such query on internet which help to identify the difference between max logical read and min logical read, but I don't know how I can filter this based on DB name. [code="sql"]select st.text,SUBSTRING(st.text, (qs.statement_start_offset / 2) + 1,((CASE statement_end_offset WHEN -1 THEN DATALENGTH(st.text) ELSE qs.statement_end_offset END- qs.statement_start_offset) / 2) +1) AS statement_text, execution_count,CASE WHEN execution_count = 0 THEN NULL ELSE total_logical_reads / execution_countEND AS avg_logical_reads, last_logical_reads, min_logical_reads, max_logical_reads, max_elapsed_time, CASE WHEN min_logical_reads = 0 THEN null ELSE max_logical_reads / min_logical_reads END AS diff_quota FROM sys.dm_exec_query_stats AS qs CROSS APPLY sys.dm_exec_sql_text (qs.sql_handle) AS st ORDER BY diff_quota DESC[/code]Thanks,
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