Prevent Query-Analizer From Caching The Query Execution?
Apr 11, 2008
Hi all I'm using Sql server 2000 and sometimes i need to run my Queries in Query analizer before using them in my application just to test them...BUT most of the time when i run a query in query-analizer for second time ,query analizer populates the result (records) more quicker then the first time. Apparently it caches the query !!! i don't know but for some reasons i dont't want this , so how can i prevent Query-analizer from doing so?
Thanks in advance. Regards.
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May 28, 2008
ok can someone tell me why i get two different answers for the same query. (looking for last day of month for a given date)
SELECT DATEADD(ms, - 3, DATEADD(mm, DATEDIFF(m, 0, CAST('12/20/2006' AS datetime)) + 1, 0)) AS Expr1
FROM testsupplierSCNCR
I am getting the result of 01/01/2007
but in query analizer I get the result of
12/31/2006
Why the different dates
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Dec 7, 2001
HI
I am quite new in query building so I would like to know where can I find some useful information about if, for,.. clauses to use in query analizer.
I would like to set a variable for date(datetime) and use it in if, for,...
clause to get results for each day in selected month.For example:
SELECT Uporabnik AS Expr1,
MIN(Ura) AS Expr3, MAX(Ura) AS Expr5, COUNT(*) AS Expr4, Datum AS Expr2
FROM BatchIndeksNEW
GROUP BY Uporabnik, Datum
HAVING (Datum = CONVERT(DATETIME, '2001-11-30 00:00:00', 102))
ORDER BY COUNT(*) DESC
thank's Tomaz
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Jan 21, 2004
Greetings,
I've been sent an alternative "Query Analizer" thingy to play with and it seems to do the job - but it ain't my area.
I've posted the tool in a free public place for a short time:
http://www.adoanywhere.com/members/yeohray/7C1_SQLTool.zip
But, for the benefit of people reding this from the archives, please follow
the registerable author link [ http://81.130.213.94/myforum/forum_posts.asp?TID=78&PN=1&TPN=1 ]
Apart from needing documentation (we all know about that old scenario) it seems good.
It didn't waste my time (and I wouldn't waste yours I hope). Could I have your comments please ?
Also, I'm looking for other tools that do the same as this one - so I can compare functionality. Even without try the freebie, any links please ?
TIA
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Jul 26, 2007
Hello!
I'm trying to improve some queries. I write the query, run it, register how long it took to return the data, twick a little and run it again. Problem: There is some kind of caching going on which render the second iteration useless in terms of time comparison. Is there any way to disable this caching mechanism, temporarily, obviously?
Thanks for your help.
J.C.
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Oct 6, 2015
SQL Server 2012 Performance Dashboard Main advices me this:
Since the application is from a vendor and I have no control over its code, how can improve this sitation?
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Nov 22, 2007
I think I have a problem with the execution plan caching in context of prepared statements. Please comment and advise.
When caching a new execution plan SQL Server apparently takes into account the actual query parameters and the current situation of the SQL Server (open transactions, transaction locks, current workload and so on). That can cause the same prepared statement to be executed verry badly with other parameters.
I am having trouble with a production system where some queries more or less suddenly start running extremly bad. The reason is an execution plan which might be optimal for some cases but is in general verry bad. Forcing a recompile of execution plans either by updating statistics or running sp_recompile solves the problem for some time. But after an unpredictable time the bad execution plan is comming back. Probably the good execution plan might also be reinstalled after som time but I cannot wait for this to happen.
The factor between good and bad execution plan is about 160 and increasing (30ms vs. 5000ms).
Please comment and advise,
Thanks
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Sep 13, 2005
I needed to do lookup on tables with approx 1 million records (how else do I know if record already exists?).
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Nov 18, 2015
How can I prevent duplicate records in the query
With
Property AS
(
SELECT
*
FROM dbo.MulkiyetBase
),
Document AS
(
SELECT
[code]....
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May 17, 2008
Hi
In a query in Management Studio, I want to output data to a text file (via Results in text button) without column names and hyphens or dashes, I have searched all SET commands with bad luck because SET FMTONLY OFF do exactly the opposite.
I know this could be a silly question because I have received suggestions in other ways to do that, but I am intrigued If there is a way to prevent column name from being displayed/returned from a query.
@@version yields
Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86)
Feb 9 2007 22:47:07
Copyright (c) 1988-2005 Microsoft Corporation
Standard Edition on Windows NT 5.2 (Build 3790: Service Pack 2)
Thank you very much, best regards
japonce
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Mar 1, 2007
Can I roll back certain query(insert/update) execution in one page if query (insert/update) in other page execution fails in asp.net.( I am using sqlserver 2000 as back end)
scenario
In a webpage1, I have insert query into master table and Page2 I have insert query to store data in sub table.
I need to rollback the insert command execution for sub table ,if insert command to master table in web page1 is failed. (Query in webpage2 executes first, then only the query in webpage1) Can I use System. Transaction to solve this? Thanks in advance
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Dec 2, 2014
I am trying to find a way to lock rows of data used in a SELECT query from being read by another SELECT query.
I could do a "begin tran - select - update - rollback" sequence but was wondering if there is a cleaner way to do this??
Tried UPDLOCK, ROWLOCK, TABLOCK, HOLDLOCK in multiple variations but none seem to block the select.
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May 20, 2008
What are the Query Execution plan. How to read and interpret query execution plan.
spatle
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Jan 23, 2007
I have a query like this:
SELECT *,isnull(dbo.fn_1(a),'') f_a,
isnull(dbo.1(b),'') f_b FROM tablea with(nolock)
WHERE ID = 12345 and ID<10000000 and dbo.fn_1(7)='asdfasdf' and Active='Y'
Does it effect performance as i am using a udf here? Also let me know the order in which the conditions will be applied.
Thanks in advance.
Thanvi
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Sep 21, 2007
Hi,
I want to know is there any way by which we can come to know
which query is going to be executed by the Engine prior to its
execution. I think if this is possible then this will affect the
performance. But It will be very helpful for me.
Is this is possible and how we can achieve this.
Plz help me out its very urgent .
Thanks for the help in Advanced.
Thanks.
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Dec 18, 2007
I have a report which have multiple parameters. By default all the parameters are selected. Now I am scheduling a Cache with Report Execution Snapshot. Now if I try to view the report, it disables the prompt selection. It means user cant change the selection. Is it the expeceted behaviour of the exectuion snapshot?
Thanks,
S Suresh
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Nov 26, 2007
I am running a query on a SQL Server 2005 database and encounter the following error message
"Internal Query Processor Error: The query processor encountered an unexpected error during execution."
There is a join between a table on the 2005 database and another on a 2000 database. I have run DBCC CHECKTABLE and found no errors on the two tables.
Anybody with ideas?
Thanks
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Dec 2, 2003
Hi all,
I have sql query to search for fields in a rather big view. If I execute the
query in sql server enterprise manager, the results will be displayed in
less than 6 seconds. However, if I execute it using asp.net, it will take
very long (more than 2 minutes).
The query is a simple one like "SELECT * FROM myview WHERE name LIKE
'%Microsoft%'". And the code I use to execute it in asp.net is
Dim dsRtn As DataSet
Dim objConnection As OleDbConnection
Try
objConnection = GetOleDbConnection()
objConnection.Open()
Dim objDataAdapter As New OleDbDataAdapter(strSearch, objConnection)
Dim objDataSet As New DataSet()
objDataAdapter.Fill(objDataSet, strTableName)
dsRtn = objDataSet
Catch ex As Exception
dsRtn = Nothing
Finally
If objConnection.State = ConnectionState.Open Then
objConnection.Close()
End If
End Try
Where strSearch is the sql search string.
I don't have any problem using such code for other queries.
Could somebody suggest the cause of the problem and how to solve it? Thanks!
Best regards,
David
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Jul 1, 2004
Hi,
I am having a query where I am connecting to eight different tables using joins. When I join one table to another the speed of the execution becomes less. Even on my local server it is taking nearly 2 to 3 minutes to execute the query. How can I increase the speed of execution of my query.
Thanks in advance,
Uday
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Sep 25, 2000
Hi,
Is there anything to be gained in a single table query by using :
tablename.columnname1, tablename.columnname2 etc
vs just columnname1,columnname2 ?
Thanks,
Judith
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Dec 6, 2001
I'd like to run 4 stored procedures in parallel on 4 different processors on our server.
Does anyone know the syntax to do that? (Could not find it on the web so far).
Anything else I need to do in addition to the specific syntax (i.e. any specific properties to set in Enterprise Manager)?
Your help is greatly appreciated!
Lana
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Sep 24, 2002
Hello ,
I wanted to know whether we have an execution plan enabled in SQL 6.5 as we have it in SQL 7.0 and SQL 2000 .
I.e when we execute a query and if we enable ' show execution plan 'then it creates a map and shows the vital statistics .
If that is available on SQL 6.5 then i am missing that tool .
How can i have it installed on my SQL 6.5 server ??
Thanks.
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May 21, 2002
I have a procedure (used to create a report) and was used in sql 7.0 service pack 3.
Problem is that we are upgrading to SQL 2000 and this procedure now takes 1 minute and 30 seconds to execute vs. 10 seconds previously.
Everything is same between the sql 7 and sql 2000 server. i.e. database size, indexes, hardware etc.
I looked at the query execution plan and it seems to do a sort which is taking majority of the resources on sql 2000 even though there is no sort stmt issued in the procedure itself.
Any help would be appreciated?? I am more curious to find out why this is the case when all the variables are same between the two servers yet sql 2000 performance is much worse than sql 7.0. It should be the other way around!!
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Aug 21, 2004
Hi,
I am using a store procedure and in this sp i am having a simple select statement. Now i found that when i executes this sp in query analyzer it takes about 8-10 min to show the output. Table is having thousands of records. I can rebuild indexes on table, but apart from this what else i can do to speed up the query.
I know there is something like we can use indexes explicitly in sql query. Is it true? if yes plz show me how to use it, by giving example
Also is there any other way to run the query much faster.
Plz help me, its very urgent
Thanks And Regards,
Shailesh
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Dec 17, 2005
We have SQL Server 2000 and int is an Oracle linked server. I'm trying to run the following query...
SELECT DISTINCT a.auf_nr AS OrderNo,
e.ku_name AS Customer,
d.bestell_dat AS OrdDate,
d.liefer_dat AS DelvDate,
CAST(SUM(b.anz) AS FLOAT) Qty,
CAST(SUM((CAST(c.breite AS FLOAT) / 1000 * CAST(c.hoehe AS FLOAT) / 1000) * b.anz) AS FLOAT) SQM,
CAST(SUM(a.liefer_offen) - (SUM(a.anz) - SUM(b.anz)) AS FLOAT) AvailDelv,
CAST(SUM(a.liefer_anz) AS FLOAT) Delvd,
CAST(SUM(c.sum_brutto*a.anz) AS FLOAT) Value
FROM liorder..LIORDER.AUF_STAT a,
liorder..LIORDER.AUF_LIP_STATUS b,
liorder..LIORDER.AUF_POS c,
liorder..LIORDER.AUF_KOPF d,
liorder..LIORDER.KUST_ADR e
WHERE a.auf_nr = b.auf_nr and
b.auf_nr = c.auf_nr and
c.auf_nr = d.auf_nr and
d.kunr = e.ku_nr and
a.auf_pos = b.auf_pos and
b.auf_pos = c.auf_pos and
b.lip_status = 7 and
c.ver_art !='V' and
a.history = 0 and
a.rg_stat != 2 and
e.ku_name IS not null and
e.ku_vk_ek = 0 and
d.bestell_dat BETWEEN '01/01/2005' and '12/17/2005'
GROUP BY a.auf_nr,
d.liefer_dat,
b.lip_status,
d.bestell_dat,
e.ku_name,
d.kopf_tour,
d.kopf_firma
HAVING CAST(SUM(a.liefer_offen)-(SUM(a.anz)-SUM(b.anz)) AS FLOAT) > 0
..and it takes around 2 minutes to show the results even if the date range is of the same date. I even tried to use an indexed column but I still get the same slow execution time. I even tried to create a UDF so that the WHERE clause would be resolved remotely on the Oracle DB but still the same. Is there anyway I can do it in much more efficient and faster way?
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Apr 16, 2007
Hello
I have a .Net application that calls an stored procedure. When it does, the execution goes and never ends (I have to kill the windows process). When I call the sp from within the Management Studio, it also never ends executing and I have to cancel the query. But, when I call it immediately after, it takes 45 seconds to complete.
Now, the sp has several parts and I have made that it prints a message at the end of each part so that I can read where it stops. Strange enough, it completes all parts except the last one, which has the form INSERT INTO myLocalTable SELECT * FROM MyRemoteTable. But if I execute the Select independetly, I discover that it brings no rows! Now, many of the @@rowcount printed after the execution of the other parts shows zero rows involved or just a few. I am not using cursors, each part is an UPDATE statement or an INSERT.
TestMachine1 runs SQL2005 SP2 and has as linked server myRemoteServer (SQL2000) server. The stored procedure in TestMachine1 inserts rows to a table in myRemoteServer and brings back some rows.
What could be wrong?
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Jun 18, 2008
can anybody help How to solve the below error.While calling the sp from the front application the below error is thrown.but if i executed the sp in backend No error is thrown ,resultset is produced.
Error thrown:
The query has been canceled because the estimated cost of this query (7) exceeds the configured threshold of 6. Contact the system administrator.
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Mar 21, 2007
A query that runs in a second or so in Query Analyzer requires 20 seconds in a linked Access Project.
What's the secret of MS_Access poor performance, and can it be improved?
Tom Stuart
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May 11, 2007
I have a strong feeling that this isn't possible but I thought I might as well ask...
I'm developing a database application (SQL Server 2000 backend) where the client and the server is separated over a slow network connection (satellite). There are parts in the application where I will have to query a large resultset so I was wondering if there is a way to determine the percent complete of a query so I can put a progress bar on the interface so the user can see it loading data instead of having a frozen form.
I thought about spliting up the query into different ones and update the bar once each separate one is complete but I'd rather not do that because in the application development environment I'm working in, I have to close the resultset and reopen it every time I do a query... unless this isn't a big deal but I'm under the impression its something to avoid.
Thanks!
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Jul 23, 2005
Hi there - i'm hoping someone can help me!I'm having a problem with a live database that i'm running on MSDE - Itseems to have slowed down quite considerably from the test environment(even when all the data is the same). The is notably different on oneparticular query that takes 1 sec on the test machine and almost 1 minon the live machineThe total number of user connections on the live machine is normally 4or so (found out through the Performance monitor). So I can't see thatit's MSDE's performance throttler...Has anybody got any ideas on things i can check for??Many thanksJames
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Sep 27, 2005
We have a console.php which takes in SQL queries and displays them in aresult.php webpage.Sometimes the query takes minutes to execute or crashes the PHPapplication. Is it possible to cancel a query during execution?If yes, how does one go about it.The PHP Console is used by multiple users simultaneously.The queries are executed on a Remote Database.
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Jul 16, 2007
Hi,We are trying to solve a real puzzle. We have a stored procedure thatexhibits *drastically* different execution times depending on how itsexecuted.When run from QA, it can take as little as 3 seconds. When it iscalled from an Excel vba application, it can take up to 180 seconds.Although, at other times, it can take as little as 20 seconds fromExcel.Here's a little background. The 180 second response time *usually*occurs after a data load into a table that is referenced by the storedprocedure.A check of DBCC show_statistics shows that the statistics DO getupdated after a large amount of data is loaded into the table.*** So, my first question is, does the updated statistics force arecompile of the stored procedure?Next, we checked syscacheobjects to see what was going on with theexecution plan for this stored procedure. What I expected to see wasONE execution plan for the stored procedure.This is not the case at all. What is happening is that TWO separateCOMPILED PLANs are being created, depending on whether the sp is runfrom QA or from Excel.In addition, there are several EXECUTABLE PLANs that correspond to thetwo COMPILED PLANs. Depending on *where* the sp is run, the usecountincreases for the various EXECUTABLE PLANS.To me, this does not make any sense! Why are there *multiple* compileand executable plans for the SAME sp?One theory we have is, that we need to call the sp with the dboqualifier, ie) EXEC dbo.spHas anyone seen this? I just want to get to the bottom of this andfind out why sometimes the query takes 180 seconds and other timesonly takes 3 seconds!!Please help.Thanks much
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Aug 24, 2007
Hi,
I have a group of reports using a shared datasource. Going to the preview of the report works fine in the report designer, but when I try and view it from a browser (deployed on a website), it gives the error:
"An error has occurred during report processing.
Query execution failed for data set 'DataSet1_ticketInfo'.
Failed to parse SQL.[long sql query here]"
If there's a problem with it, I don't get why it works in preview mode. I'm using SQL server 2005.
Thanks.
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