DMV use Cross Apply and too much result

Hi
Here are my code for query DMV, but some column Is repeated, how can I filter it (last_exection_time) ?
I just wnat find T-SQL query information(only select), and it must include query text、targert db、source application(from connection string )、and other needed !
You can change database name and where conditional, for your testing ! Thanks
SELECT DB_NAME(DMV_QueryText.dbid) as 'DBName',
DMV_Sessions.program_name as 'ApplicationName',
DMV_QueryText.text as 'SQL Statement',
execution_count as 'Count',
--last_rows, (for SQL 2012 only)
last_execution_time as 'Last Execution Time(ms)',
last_worker_time as 'Last Worker Time(ms)',
last_physical_reads as 'Last Physical Reads(ms)',
last_logical_reads as 'Last Logical Reads(ms)',
last_logical_writes as 'Last Logical Writes(ms)',
last_elapsed_time as 'Last Elapsed Time(ms)'
FROM sys.dm_exec_query_stats AS DMV_QueryStats
CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS DMV_QueryText
cross Apply sys.dm_exec_sessions as DMV_Sessions
WHERE DMV_QueryText.objectid is null and DB_Name(DMV_QueryText.dbid)='YourDB' and PatIndex('select %',DMV_QueryText.text)>0
and DMV_Sessions.program_name is not null and DMV_Sessions.program_name in('app1','app2','app3','app4')
-- order by DMV_QueryStats.execution_count desc
order by DMV_QueryStats.last_worker_time desc
my407sw

There is no relationship between sys.dm_exec_query_stats and
sys.dm_exec_sessions and thus you are getting a Cartesian product, every combination of query stat record and session.
sys.dm_exec_sessions shows the "aggregate performance statistics for cached query plans in SQL Server 2012"
http://msdn.microsoft.com/en-us/library/ms189741.aspx and is not tied in any way to a session.
Russel Loski, MCT, MCSE Data Platform/Business Intelligence. Twitter: @sqlmovers; blog: www.sqlmovers.com

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Unfortunatley we don't know anything about the table structure (colums, indexes) but based on your observation I presume a table with multiple indexes. Furthermore I presume a nonclustered non unique index on the column you are updating.
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Id INT NOT NULL IDENTITY (1, 1),
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SET NOCOUNT ON;
GO
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SELECT pc.*, d.Id, d.c1
FROM dbo.demo AS d CROSS APPLY sys.fn_PhysLocCracker(%%physloc%%) AS pc
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DBCC TRACEON (3604);
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Slot 0, Offset 0x60, Length 115, DumpStyle BYTE
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70 00 OFFSET for information about number of columns (112)
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Get more information about my arguments here:
Calculation of index size:
http://msdn.microsoft.com/en-us/library/ms190620.aspx
Structure of a record:
http://www.sqlskills.com/blogs/paul/inside-the-storage-engine-anatomy-of-a-record/
PS: I remember my first international speaker engagement which was in 2013 in Stockholm (Erland may remember it!). I was talking about the internal structures of the database engine as a starting point for my "INSERT / UPDTAE / DELETE - deep dive" session.
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better way the future storage size :)
You can watch it here but I wouldn't recommend it :)
http://www.sqlpass.org/sqlrally/2013/nordic/Agenda/VideoRecordings.aspx
MCM - SQL Server 2008
MCSE - SQL Server 2012
db Berater GmbH
SQL Server Blog (german only)

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