Help Me Diagnose This SQL Timeout (runs 40 Seconds In ASP.NET, &<1 Second In Query Analyzer)
Mar 8, 2007
This is in ASP.NET 1.1. I have a performance problem with a webform. The form contains several bound fields and a couple datagrids. I fill the grids by creating a data adapter, then I use the adapter to fill a dataset, then I set the grid datasource to the dataset.
The query to fill one of the grids is getting a SQL timeout when running from my application (it takes about 40 seconds to complete). When I run the same SQL code from SQL Query Analyzer it runs in less than 1 second. (it is embedded sql in the app, not a stored procedure).
I suspect that something else is being requested from SQL during the postback that is causing a blocking issue or something but I can't tell exactly what is happening. I've tried tracing through the code and all that I can tell is that the timeout occurs during the dataadapter.fill command.
Has anyone else seen something similar? Is there a good way for me to see what SQL commands are being executed from ASP.NET? Any advice on debugging this would be much appreciated.
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Aug 17, 2004
Hello there,
I am programming with visual basic and I have a large query wich takes too long for execution. After 30 seconds I get a timeout error.
Is there any way to raise the timeout to 90 seconds or something.
I'm using the following connection string to connect to the database.
Provider=SQLOLEDB.1;Connect Timeout=2;Password=****;Persist Security Info=True;User ID=user;Initial Catalog=test;Data Source=sqlserver
thank you
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Aug 29, 2001
THis is so annoying. I have 3 ADO executes in my program. THe first one creates a view, the second one performs an outer join on that view and returns a result set, the third execute drops the aforementioned view. THe program that is using this is installed on about 200 computers scattered across Germany and Italy, all querying the same MSsql server 7.0. THe queries run quite quick when few users are actively using the program (after hours for example). however in the heat of the day performance goes up and down dramatically with identical queries taking from 1 to 20 seconds to return their result set. Now I initially thought 'bandwidth issue out of our server'. However I noticed that if I take those three queries and run them from the sql server enterprise manager( running on the same computer as the aforementioned program) then the queries run instantly and the data is in my result pane in less than 2 seconds ALWAYS....even when the program is dogging it with 20 second delays before the result set returns. I know it is hanging on the return of the result set as I put a stop after before each ADO execute in order to check which one was eating up my time. Why is there this dichotomy between running the queries from my enterprise manager versus running them from an ADO object. Both are using TCP/IP (no named pipes involved). I havent monkied with the attributes of the ADO result set so they are all set to default.
I have used the sql server profiler to trace these queries and they always run in less than 33 milliseconds. THe duration is also never more than 33 milliseconds. THis stinks of a network resource issue but what always leads me somewhere else is how consistent the performance of the enterprise manager is when it runs the exact same three queries.
Here is my slightly edited connection string
Public Const connection_string = "Provider=SQLOLEDB;Server=000.000.000.000;" & _
"User ID=johndoe;Password=janedoe;Network=dbmssocn;" & _
"database=fidojoe"
Here are the 3 ADO executes:
conn.Execute (sqlstr_create_view)
Set resultset1 = conn.Execute(sqlstr_get_providers_by_DMISID)
conn.Execute (sqlstr_drop_view)
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Jan 9, 2002
I was working remotely with few SQL Servers for a while without any problem.
The Servers are configured to use TCP-IP for the connection.
Then suddenly today I can connect to the servers in the Enterprise manager , but
not through the SQL Query Analyzer.
The error I am getting after waiting for a while the login ... Timeout Expired.
I've tried changing the Connection Settings under Options, but it did not help.
Nothing was changed in the Server/Client configuration.
Please advice
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Jan 8, 2002
I was working remotely with few SQL Servers for a while without any problem.
The Servers are configured to use TCP-IP for the connection.
Then suddenly today I can connect to the servers in the Enterprise manager , but
not through the SQL Query Analyzer.
The error I am getting after waiting for a while the login ... Timeout Expired.
I've tried changing the Connection Settings under Options, but it did not help.
Nothing was changed in the Server/Client configuration.
The Servers affected are SQL 7.0. and SQL 2000
Please advice
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Apr 23, 2008
Performance issue.
I have a very complex Stored Procedure called by a Job that is Scheduled to run every night.
It's execution takes sometimes 1 or 2 hours and sometimes 7 hours or more.
So, if it is running for more than 4 hours I stop the Job and I run the procedure from a Query Window and it never takes more than 2 hours.
Can anyone help me identify the problem ? I want to run from the Job and not to worry about it.
Some more information:
- It is SQL 2000 Enterprise with SP4 in a Cluster (It happens the same way in any node).
- The SQL Server and SQL Agent services run using a Domain Account that have full Administrative access.
- When I connect to a Query Window I also use a Windows Account.
- There is no locks or process bloking or being blocked while the job is running.
- Using the Task Manager the processor activity is ok, no more than 30 % in any processor.
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Sep 21, 2007
I have a Stored Procedure that has a query in it and it take 0 second and then a stored procedure that takes 16 seconds. From what I can tell they shoul be the same.
It doesn't recompile when i run the stored procedure, I checked that.
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Jul 23, 2005
Hi all.If I've got a query which has a field with seconds in it... how will I usethe Convert function to get my field converted to the format: HH:MM:SS ?The field with the seconds in is called: "Diff"Thanks alotRudi
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Dec 19, 2003
I'm running a query, actually its an insert that works when using the TSQL below.
However when I try to use the debugger to step through and using the exact same values as those below I get the following error:
[Microsoft][ODBC SQL Server Driver]Invalid character value for cast specification
Its Killing me because everything else works, but this. Can somebody help.
DECLARE @NoteID INT,-- NULL OUTPUT,
@Note_Description NVARCHAR(3000),-- = NULL,
@Date DateTime,-- = NULL OUTPUT,
@ByWho NVARCHAR(30),-- = NULL,
@FK_Action_Performed NVARCHAR(40),-- = NULL,
@FK_UserID INT,-- = NULL,
@FK_JobID INT,-- = NULL,
@Job_Date DateTime,-- = NULL,
@Start DateTime,-- = NULL,
@Finish DateTime,-- = NULL,
@BeenRead NVARCHAR(10),-- = NULL
@FK_UserIDList NVARCHAR(4000)-- = NULL
--SET @NoteID = 409 --NULL OUTPUT,
SET @Note_Description = 'Tetsing'
--SET @Date DateTime = NULL OUTPUT,
SET @ByWho = 'GeorgeAgaian'
SET @FK_Action_Performed = 'Worked hard'
SET @FK_UserID = 5
SET @FK_JobID = 29
SET @Job_Date = 28/01/03
SET @Start = '1:00:20 PM'
SET @Finish = '1:00:20 PM'
SET @BeenRead = 'UnRead'
SET @FK_UserIDList = '1,2,3'
--AS
--SET NOCOUNT ON
SET NOCOUNT ON
SET XACT_ABORT ON
BEGIN TRANSACTION
SET @Date = GETDATE()
-- Insert Values into the customer table
INSERT Note (Note_Description,
Date,
ByWho,
FK_Action_Performed,
FK_UserID,
FK_JobID,
Job_Date,
Start,
Finish)
SELECT --@NoteID,
@Note_Description,
@Date,
@ByWho,
@FK_Action_Performed,
@FK_UserID,
@FK_JobID,
@Job_Date,
@Start,
@Finish
-- Get the new Customer Identifier, return as OUTPUT param
SELECT @NoteID = @@IDENTITY
-- Insert new notes for all the users that the note pertains to, in this case this will be by the assigned
-- users.
IF @FK_UserIDList IS NOT NULL
EXECUTE spInsertNotesByAssignedUsers @NoteID, @FK_UserIDList
-- Insert New Address record
-- Retrieve Address reference into @AddressId
-- EXEC spInsertForUserNote
-- @FK_UserID,
--@NoteID,
-- @BeenRead
-- @Fax,
-- @PKId,
-- @AddressId OUTPUT
COMMIT TRANSACTION
--------------------------------------------------
GO
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Nov 8, 2007
I have the following SQL query where i want thease to be populate to GridView, but the Duration field is in Second format, I want it would be in HH:MM:SS format.
cmd = "select subscriber_id as Subscriber_no,,amount,duration from MyTable" ;
Please help me how to format this within the Query to display in GridView.
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Mar 26, 2004
Hi all,
can someone give me some advise on how to troubleshoot this.... thanks.
Here is the situation:
We have a server running nicely for the past 1 years. And just yesterday, things started to acting very slow.
A simple query that will return one row:
"select * from product where itemno = 1234 and visible =1"
will take 20 second sometime 30! The weird thing is.. it only happens intermittently. The table also only contain 4000 rows. so its not even a big table. I am not sure if this is caused by lack of memory or what (256mb ram, p4 1ghz on this server).
The system cpu usage % avg around 3-8%. but when that weird behavior started. All the other queries will wait for it to finished and then burst the cpu usage up to 100%. Afterward, it will level off and then the cycle repeat again.
I'm just hoping if anyone can give me a few pointers as of where to troubleshoot. I've tried rebuild the index on that table but it didn't help. This weird behavior not only happen on this particular table, but also on different db within the same server. (note: they are small dbs only)
p.s. here is the site that is running on this db, you'll see this weird delay after a few click on the pages.
http://www.animepot.com
Thanks you for your time,
Derick
forgot to mentioned, the sql server is 7.0
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Apr 13, 2006
Hi,
How can I make a query and group the registries in a interval of 30 seconds...like
for each line I have a datetime field that have all the day, and I need it to return just like
TIME Contador_type1 Contador_type2 Total
01-01-2006 00:00:30.000 2 5 7
01-01-2006 00:01:00.000 3 7 10
It's just an example...but that's the result that I need and my table is
data_hora -- datetime field
tipo - 1 or 2 -- count
nrtelefone - that's is the number dialed.
Thanks
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Oct 31, 2007
I have an SSIS package I've been working on that has been working just fine until now.
There are four inputs to this package, all OLEDB Inputs based on SQL Statement expressions.
These four inputs are then merged with a Union All step.
One of the merged columns is called "unit" and now suddenly this column cannot be added to the union all step for one of the inputs.
I get the following error:
Error at Import mat [Union All [330]]: The metadata for "input column "unit" (8979)" does not match the metadata for the associated output column.
Error at Import Mat [Union All [330]]: Failed to set property "OutputColumnLineageID" on "input column "unit" (8979)".
My question is
Can anyone suggest how I can diagnose this issue? I can't see the metadata in question, but when I physically inspect the results of the source queries, they all seem consistant with each other. The unit column is derived in similar fashion in each query. I'm a bit lost with this. I can't seem to shake off the error. Nothing has changed in the database to cause this.
Cheers.
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Jan 26, 2007
I am not sure if I am in the correct location or if I should be in the SQL forum but here is my question:
I have an update statement that goes out through SQL 2000 through a local linked server to another SQL 2000 server on my machine. When I run the update in Query Analyzer it takes less than a second. When I run it in my C# code using the SqlCommand object and parameters it takes me ~23 seconds. If I remove one of the parameters it goes down to ~15 milliseconds. Has anyone heard of this happening?
The parameter that I remove is a simple char(10) column that isn't the primary key and is used in the WHERE statement. There isn't an index on the field.
23 Seconds
Update table Set column = @val WHERE field = @field AND other = @other
15 milliseconds
Update table Set column = @val WHERE field = 'values' AND other = @other
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Jul 23, 2005
I am able to run a query which runs FAst in QA but slow in theapplication.It takes about 16 m in QA but 1000 ms on theApplication.What I wanted to know is why would the query take a longtime in the application when it runs fast on SQL server?How should we try debugging it?Ajay
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Feb 19, 2008
Hi Guys,
I've got a stored proc used for order generation which runs long sometimes when called from within our app. A normal run will complete within 20s, a long run will get terminated by the app at the 6 minute mark.
When it runs long once, repeated attempts will also do so until I execute the same query the app did, but from within Query Analyzer. At which time the problem will disappear for a day or two. The app connects to the SQL Server 200 SP4 database using ADO.
I suspected statistics might be at fault here but have tried both "UPDATE STATISTICS table WITH FULLSCAN" and "DBCC DBREINDEX('table') to no avail. This issue has occurred and been worked around in this manner a few dozen times.
Any idea what might be going on here?
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Sep 23, 2015
In sql we have a built in function
DATEDIFF(second, startdate, enddate)
How can we achieve the same using Log parser query for date time in format (2015-09-22 10:25:30.5220)
Example:
startdate = 2015-09-22 10:25:30.5220.
Enddate = 2015-09-22 10:26:30.5220
After DateDiff I need to get 6 seconds.
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Mar 4, 2015
This is my sql script :
DECLARE @countRows INT,
@currDate DATE,
@checkForTasks INT,
@created_by_id INT,
@gst_ID int;
SET @currDate = Getdate()
This is resided in videos folder of windows , i have created a task schedular in windows 8.1 to run daily at every 10 seconds , but it is not working ...
This sql query is running perfectly in sql server. Query have no errors.
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Feb 12, 2008
When I run the following query from Query Analyzer in SQL Serer 2005, I get a message back that says.
Command(s) completed successfully.
What I really need it to do is to display the results of the query. Does anyone know how to do this?
declare @SniierId as uniqueidentifierset @SniierId = '85555560-AD5D-430C-9B97-FB0AC3C7DA1F'declare @SniierAlias as nvarchar(50)declare @AlwaysShowEditButton as bitdeclare @SniierName as nvarchar (128)/* Check access for Sniier */SELECT TOP 1 @SniierName = Sniiers.SniierName, @SniierAlias = Sniiers.SniierAlias, @AlwaysShowEditButton = Sniiers.AlwaysShowEditButtonFROM SniiersWHERE Sniiers.SniierId=@SniierId
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Mar 11, 2008
Good afternoon,
i'm new to Functions on the SQL server
I'm trying to create a dynamic query that would select the the column passed to the function from a certain table
my table called selected_Date, and has StartDate, and EndDate columns
when the user select for example "StartDate", i pass this as a variable to the function which runs the query. but i always gets back the passed string as a result..
here is my table
StartDate | EndDate
---------------------
20071231 | 20080306
here is my function knowing that i'm passing "Start" as a variable:
Code:
ALTER FUNCTION tu_efgn_int.Get_StartEndDates(@DateType varchar(10))
RETURNS varchar(8)
AS
BEGIN
DECLARE @vDate varchar(15)
Set @vDate= (Select @DateType + 'Date' From dbo.ps_tbl_SelectedDates)
RETURN @vDate
END
@vDate always returns "StartDate" as result instead of 20071231 why is that ?
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Jan 15, 2008
Hi,
I am running the following MDX query through a DataReader and a Ado.Net Connection.
SELECT
{[Measures].[Deuda Total Nacional],
[Measures].[Deuda Total Nacional Maximo],
[Measures].[Cupo Nacional],
[Measures].[Porcentaje Utilizacion Maximo],
[Measures].[Pago Minimo Estado Cuenta],
[Measures].[Deuda Ultima Facturacion],
[Measures].[Dias Mora],
[Measures].[Dias Mora Maximo],
}
ON COLUMNS
,[Cuenta].[Cuenta].[Cuenta]*[Cuenta].[Rut].[Rut]*[Cuenta].[Dv].[Dv] ON ROWS
FROM [Bd Rtd]
WHERE [Tiempo].[Mes].&[2007-09-01T00:00:00]
The thing is, when I have about 10 thousand rows It runs in about 50 seconds which is good, but when I run this query and I have processed the cube with 100 thousand rows it runs out of memory and crashes.
I'm working in a shared development server with 1GB of memory for my project.
Is there any way to make it run anyway?? I mean even if it has to swap.
thanks
By the way when this thing goes into production it will have 1.5 million rows
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Feb 11, 2015
I have a sql snippet from a 3rd party application that will not complete its transaction. The SELECT statement executes but does not finish. Instead the statement just sits in AWAITING COMMAND for 1000 seconds then dies, thus killing the UPDATE statement that is supposed to follow.
The CROSS JOIN and CROSS APPLY seem suspect.
(
@p0 DATETIME,
@p1 INT,
@p2 INT,
@p3 NVARCHAR(4000),
@p4 INT,
[code]....
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Aug 17, 2006
Can€™t understand the Query execution interval, for every one criteria it takes extra 60 seconds. Help please?,
Query A
SELECT TOP 15 * FROM CMD4 AS T1 WHERE T1.ST IN
(SELECT max(T2.ST) FROM CMD4 AS T2 WHERE T1.SERIAL=T2.SERIAL
AND T2.sd='20060817') AND sd='20060817'
--AND STOCKNAME like 'A%'
ORDER BY D_CUM desc;
The above query take 2 seconds to return result
Query B
SELECT TOP 15 * FROM CMD4 AS T1 WHERE T1.ST IN
(SELECT max(T2.ST) FROM CMD4 AS T2 WHERE T1.SERIAL=T2.SERIAL
AND T2.sd='20060817') AND sd='20060817' AND STOCKNAME like 'A%' ORDER BY D_CUM desc
This query same as above but " AND STOCKNAME like 'A%'" Criteria only added but it takes 01 minute 43 seconds to return result. why it is like that where i need to adjust the query i have no idea. please help
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Aug 21, 2006
SELECT * FROM
( SELECT TOP 15 * FROM
(SELECT TOP 15 CMDS.STOCKCODE AS CODE,CMDS.STOCKNAME AS NAME,CMDS.Sector AS SEC, CMD7.REFERENCE AS REF,T1.HIGHP AS HIGH,
T1.LOW,T1.B1_CUM AS 'B/QTY', T1.B1_PRICE AS BUY,T1.S1_PRICE AS SELL,
T1.S1_CUM AS 'S/QTY', T1.D_PRICE AS LAST,T1.L_CUM AS LVOL,T1.Chg AS CHG,T1.Chgp AS CHGP, T1.D_CUM AS VOLUME,substring(T1.ST,7,6) AS TIME,
CMDS.SERIAL as SERIAL FROM CMD7,CMDS,CMD4 AS T1 WHERE T1.ST IN
(SELECT max(T2.ST) FROM CMD4 AS T2 ,CMDS WHERE
T1.SERIAL=T2.SERIAL
AND CMDS.SERIAL=T2.SERIAL
AND T2.sd='20060821'
AND CMDS.sd='20060821'
AND T2.L_CUM < '1900'
AND CMDS.sector >='1'
AND CMDS.sector <='47')
AND CMDS.SERIAL=T1.SERIAL AND
CMDS.SERIAL=CMD7.SERIAL AND
CMDS.sd='20060821' AND
CMD7.sd='20060821' AND
T1.sd='20060821' AND
T1.L_CUM < '1900' AND
CMDS.sector >='1' AND
CMDS.sector <='47' ORDER BY T1.D_CUM desc)
AS TBL1 ORDER BY VOLUME asc) AS TBL1 ORDER BY VOLUME desc;
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Feb 25, 2012
When I run query in excel it gives result with different column sequence. The same query gives result with different column sequence when used in query analyzer or VBA Macro. E.g., Select * from ABC.
result in Excel 2003 SQL OLE DB query
col-A col-B col-C
values...
Result with Query Analyzer and VBA Macro
col-c col-B col-A
values...
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Apr 9, 2006
I hope I am not asking about something that has been done before, but Ihave searched and cannot find an answer. What I am trying to do is torun a query, and then perform some logic on the rowcount and thenpossibly display the result of the query. I know it can be done withADO, but I need to do it in Query Analyzer. The query looks like this:select Varfrom DBwhere SomeCriteriaif @@Rowcount = 0select 'n/a'else if @@Rowcount = 1select -- this is the part where I need to redisplay the resultfrom the above queryelse if @@Rowcount > 1-- do something elseThe reason that I want to do it without re-running the query is that Iwant to minimize impact on the DB, and the reason that I can't useanother program is that I do not have a develpment environment where Ineed to run the queries. I would select the data into a temp table, butagain, I am concerned about impacting the DB. Any suggestions would begreatly appreciated. I am really hoping there is something as simple as@@resultset, or something to that effect.
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Aug 23, 2000
I have a query which joins multiple tables. This query has suddenly begun to take up to 2 minutes to run (vs. 5-10 seconds previously).
No major change in number of records in the tables (currently about 220,000). When I remove the PK from one of the tables which then forces a tablescan, the query returns to running in 5-10 seconds. If I add the PK back, performance is back to 2 minutes.
Any suggestions short and/or long term?
Thanks for any help.
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Jun 30, 2014
I have two servers: one production and one development. There is a third party query that runs on both servers. Yes, the query is poorly tuned - I cannot change it. In production, it runs in 54 minutes. In development, I have tried to let it run for days and it never completes.
Here's what I have tried so far:
Compared the settings of production vs. development. The settings are very similar - the development box is larger, 4 times more memory.
Max degree of parallelism is the same on both boxes.
No compression on both boxes.
The production server is fairly busy, the development server is empty - this is the only process running on it.
Plenty of free disk space.
Updated all statistics on all databases touched by the query on dev.
Indexing is the same on both boxes.
The development box is running MSSQL2012.
The production box is running MSSQL2008R2.
What I've noticed:
The query consumes a massive amount of CPU time.
HUGE number of reads (16 million reads for 10 writes according to sp_WhoIsActive)
Largest wait types are CXPACKET, SOS_SCHEDULER_YIELD and TRACEWRITE respectively.
wait_typesum_wait_time_mspct_wait_timesum_waiting_tasksavg_wait_time_ms
CXPACKET4142765580.7176307423.5
SOS_SCHEDULER_YIELD24146944.7532725530.0
TRACEWRITE19856343.914831338.9
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Aug 29, 2007
I would like to create a query to find what user owns the job. It probably is in the master db, but I wouldn't know where to begin other than that. Telling me how to either change the job owner or create a job through t-sql would also help. Thanks
-Kyle
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Jul 18, 2007
Hi All,
Recently we started using Pass throughs to perofmr large inserts, however we have started to notice that some of these pass throughs are executing twice, and therefore duplicating data.
Is this a known bug, and if not has anyone got any advice on what could be causing it?
We're connecting from Access 2002 (SP6) to SQL Server 2000 Enterprise.
The conenction string / code is as follows :-
Dim cmd As ADODB.Command
Set cmd = New ADODB.Command
Set cmd.ActiveConnection = CurrentProject.Connection
cmd.Properties("Jet OLEDBDBC Pass-Through Statement") = True
cmd.Properties _
("Jet OLEDB*** Through Query Connect String") = _
"ODBC;DSN=" & myDatabaseShort & ";DATABASE=" & myDatabase & ";UID=sa;PWD=" & Left(myDatabaseShort, 4) & ";"
It connects fine. My sql string is a straightforward Insert statement that only executes once via SQL Query Analyzer.
I'm calling the pass through using the following lines of code:-
cmd.CommandText = mysql
cmd.Execute
Can anyone see anything obvious that I'm doing wrong, or is this a known issue?
Cheers
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Mar 28, 2008
I just want to find out what the difference between a remote login and a remote query is. I'd have thought that a remote query inherently requires a remote login.
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Jan 8, 2008
Ok, I'll admit right off the bat that I never suspected that I'd ever raise this complaint, much less worry about how to fix the "problem" associated with it!
We're preparing to take a large set of changes (projects) to PeopleSoft Financials from development to test. The code is still somewhat rough, but it has been "desk checked" to ensure that it does what the developers think that it ought to do, and they've blessed it at that point. The code is now moving into the test phase, and the QA team is finding locking/blocking issues that we've never seen in this code before... Sort of a "lock avalanche" where no one process locks for very long, but many of them block one another to the point where applications actually "freeze" while almost never hitting a deadlock.
My solution was to create a "blitzkrieg" query / stored procedure that would periodically sample master.dbo.sysprocesses, master.dbo.sysdatabases, and apply one of the dm_ functions to gather information on locking, blocking, and deadlocking. My procedure runs nicely (it never hangs) and gets about 99.3% of the data that I want.
The problem is that the blasted query / stored procedure runs either too fast or too slow, depending on how you look at it. Because the dm_ function takes a few ms to run, there can be a situation where either a row appears as a false positive or as a missing row because of timing... Either the culprit shows up as a blocker, but by the time the victim spid is evaluated the block has cleared, or the row is skipped and by the time the victim is evaluated the block has occured.
The whole process runs in well under 100 ms when there is nothing to report, and I've never seen it run 200 ms yet under the worst conditions it has faced, so the code is fast... The problem is that I really don't want to try to enforce any kind of locking to resolve the issue, because that locking would impact performance and that is EXACTLY what I do NOT want to do.
Any suggestions?
-PatP
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Jul 23, 2005
I have a query I developed and optimised as well as possible beforeconverting to a view.When running in query analyser the query runs in 15 to 18 seconds -which is acceptable.When "converting" into a view ( This is necessary for operationalreasons) and running with the same parameter it runs in 3 to 4minutes.Is there something I am unaware of ( well of course there is !!) -I was wondering why this occurs and how I can avoid / correct theissue.All advice gratefully received.Dave ( Still learning stuff about SQL Server every day!!)
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