#sys.dm_exec_query_stats

[rg443]

Find Top Most Expensive Cached Queries (sys.dm_exec_query_stats)

[bs url=http://www.codeproject.com/Articles/579593/How-to-Find-the-Top-Most-Expens] sys.dm_exec_query_stats DMV (Dynamic Management View) is described at http://msdn.microsoft.com/en-us/library/ms189741.aspx

Top 10 Total CPU Consuming Queries

SELECT TOP 10 QT.TEXT AS STATEMENT_TEXT, QP.QUERY_PLAN, QS.TOTAL_WORKER_TIME AS CPU_TIME FROM SYS.DM_EXEC_QUERY_STATS QS CROSS APPLY SYS.DM_EXEC_SQL_TEXT…

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[rg443]

SQL Server - most costly queries in terms of Total CPU

SQL Server – most costly queries in terms of Total CPU

[bs url=http://www.johnsansom.com/how-to-identify-the-most-costly-sql-server-queries-using-dmvs/]

SELECT TOP 20 qs.sql_handle, qs.execution_count, qs.total_worker_time AS Total_CPU, total_CPU_inSeconds = --Converted from microseconds qs.total_worker_time/1000000, average_CPU_inSeconds = --Converted from microseconds (qs.total_worker_time/1000000) / qs.execution_count, qs.total_elapsed_time,…

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[rg443]

List expensive tsql queries (sys.dm_exec_query_stats)

List expensive queries [bs url=http://gallery.technet.microsoft.com/scriptcenter/List-expensive-queries-f6d63ac6] This Transact-SQL script returns the values from DMV sys.dm_exec_query_stats to rate SQL statements by their costs. These “costs” can be “Average CPU execution time “Average logical operations” or the total values of these measures

DECLARE @MinExecutions int; SET @MinExecutions = 5…

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[simplesqlserver]

Query Stats

DBAs rarely use the full potential of sys.dm_exec_query_stats.  It’s common to see the queries for looking at the most expensive queries according to any of the stats contained within the current cache, which is great to see.  However, if you grab…

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[simplesqlserver]

Recently Recompiled Resource Hogs

Blogged: SQL Server Recently Recompiled Resource Hogs

It’s not too uncommon for a query to get a new execution plan that performs a lot worse than it could, and sometimes it’s bad enough to drag the whole server down to a halt.  When it’s something obvious such as a query going from 2 seconds duration to 30…

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