Linked Tables Running Slow Over Network
Oct 12, 2006
Hi
I have a couple of acces databases running on a peer to peer network (database A and B, which are housed on PC1). The database B has a link to a Customer table in database A. This was running fine until another user on the peer to peer network wanted to use database B on their pc (PC2). I had to change the the file location of the linked table to show it's location on the network so PC2 could open it. Unfortunatley this greatly slowed the operation of the database B on both machines.
If anyone has made it this far - Is there any way round this?
Regards
David
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Mar 2, 2004
I created an Access Application already and i placed the application on the server and noticed it to be slow in loading the forms and retrieving data.
So I figure if I linked the tables of my application and place only the table on the server, and have the GUI be stored local on User computer it would run faster. But I find it to be even more slower. Can anyone help me out figuring why is this? All I did was use the database splitter feature of MS Access 2000 to link all of my tables.
Any help is greatly appreciative
-phake123
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Jun 29, 2012
I recall reading somewhere (fairly recently) about a parameter or property in Access which is "On" by default and allows a form/query to identify when backend table field names or query arguments are changed and automatically looks for and "fixes" the renamed link. By leaving this switched ON, the database is slower than it could be. The db speed performance can be can be improved significantly by switching this 'feature' off. (i.e. Name of the property)
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May 22, 2006
I have a main computer where my Access Application runs but I also want other computers with the application runnign on it but linked to the backend database on the main computer, however when linking to the tables they are only read only.
How do you link to tables accross the network so you can read and writ e to them?
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Oct 13, 2004
I have a problem trying to improve performance on a database with linked tables across a network. I found in MS Access Help that you can do the following (see bullet below), but I have no idea how to use the OpenRecordset method. Can anyone give me an idea how to code this, or update the linked table with the information given below.
*You can greatly enhance performance when opening the main database and opening tables and forms by forcing the linked database to remain open. To do this, create an empty table in the linked database, and link the table in the main database. Then use the OpenRecordset method to open the linked table. This prevents the Microsoft Jet database engine from repeatedly opening and closing the linked database and creating and deleting the associated .ldb file.
I'd appreciate your help.
Thanks in advance,
JYMALY
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Feb 7, 2006
This problem is driving me nuts!!
I`ve just spent a fair few months creating a database to be used by our sales team, I`ve about finished it and came to trial it with the sales manager. When he is using the database at the same time as me it becomes slow.
The design has a front end with all the queries, forms etc and a back end on a server containing the tables.
The database was created using Access 2000 and was designed to replace a similair db created on 97 which has a decent speed on the network.
The other strange thing is that one particular macro that I`ve been using for the speed tests runs quite slow (about 3 secs) when 2 pcs have the db open but once the macro has run if it is run again it takes typically less than a second to run.
What would cause a db to run a macro at different speeds after they`ve been run once? I`ve tried everything I can find on the net to try and improve the speed to no avail.
Help please!!
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Sep 18, 2006
I have a 16Mb DB. The intention is for users to access this over the network without copying onto their local machines.
At present, many of the forms are located on 1 master form and they are all subforms on tabs. There are a lot of calculated control boxes on the forms, and these seem to be very slow to bring back the data over the network whereas on my local machine, the data is displayed in a couple of seconds.
COuld this be sped up somehow? Maybe using queries or other methods?
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Nov 6, 2006
Hello,
I have split a database useing the database spliter wizard. But I still have network speed problems. What I am wondering is if anyone knows if useing an ODBC connection between the front and back ends is more efficient than file sharing across the network?
Thanks for any information on this
Tim
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Jan 16, 2007
Hi guys. I am stumped with a 45 second delay when I startup my application. I get the delay on networked workstations only when another workstation is up showing the Main "switchboard" form. Each workstation has their own copy of VBA (not compiled) with networked versions having linked tables to the server's .mdb
It seems like the workstations know that the main form is up somewhere else and need to negotiate with it. All have the (Access 2000) Default open mode to Shared, Default record locking to No Locks, and Open database using record-level locking On.
:confused:
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Feb 8, 2006
I have completed a database for a company with 60 000 clients and over 100 000 job records.
The database works at very resonable speeds on the Server computer, or the computer on which I installed the back end of the database.
Each of the other 3 computers on the wireless network, have a local copy of the Front End on their machine, and reference the Back End (BE) on the server computer.
Each of the Client computers have varing speeds when accessing the BE, some as slow as 10 minutes for a simple search, filter or just loading a form.
What can I do to improve performance across the network?
Do I need to install additional components on the other computers to improve the db performance?
Your help will be much appreciated.
Joseph.
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Jun 24, 2005
I am using Access 2003 but it is to slow, what can I do?
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Jan 10, 2008
hello all,
i've written this query and all was working fine, but.... i added the Where IN statement and no it runs really slow. i have tried using the Where exists option but couldn't get it working.
As i understand it this is probably the worst query to run on a jet database
as it contains subqueries, select Disinct and a Where statement.
any /pointers to speed it up?
thanks all
SELECT LNE_ACTUAL_COST_JOIN.Project_ID, LNE_ACTUAL_COST_JOIN.UID, SUM(LNE_ACTUAL_COST_JOIN.[10/08] ) AS ActualCost, PPE.[Plan at Prior Period End]
FROM LNE_ACTUAL_COST_JOIN RIGHT JOIN
(SELECT DISTINCT LNE_P3e_Activities.Project_ID, LNE_P3e_Activities.UID, LNE_P3e_Activities.UID_Desc, sum(Results_Cost_Next_Period_Activities.Planned_Co st) AS [Plan at Prior Period End]
FROM LNE_P3e_Activities INNER JOIN Results_Cost_Next_Period_Activities
ON (LNE_P3e_Activities.Project_ID = Results_Cost_Next_Period_Activities.Project_ID) AND (LNE_P3e_Activities.Activity_ID = Results_Cost_Next_Period_Activities.Activity_ID)
WHERE LNE_P3e_Activities.Project_ID IN
(SELECT project_ID
FROM Project_List_LNE
WHERE LNE_P3e_Activities.Project_ID = Project_List_LNE.Project_ID ) AND
((Results_Cost_Next_Period_Activities.Year)="07/08") AND ((Results_Cost_Next_Period_Activities.Period)=11)
GROUP BY LNE_P3e_Activities.UID, LNE_P3e_Activities.Project_ID, LNE_P3e_Activities.UID_Desc
)
AS PPE ON (LNE_ACTUAL_COST_JOIN.UID = PPE.UID) AND (LNE_ACTUAL_COST_JOIN.Project_ID = PPE.Project_ID)
GROUP BY LNE_ACTUAL_COST_JOIN.Project_ID, LNE_ACTUAL_COST_JOIN.UID, PPE.[Plan at Prior Period End];
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Jan 31, 2006
I have access 2003 installed on two different machines. One machine was built 6 months ago with the best hardware available. The other was an older slow IBM.
For some reason, I am experiencing what appears to be some serious time delay (talking in the range of seconds, sometimes tens of seconds) when building a report that has a subreport in it on the fast machine. Yet when I load the exact same database on the slow machine, the report opens instantly.
Any ideas? I'm lost.
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Feb 13, 2008
What would be a better way to do below query --
UPDATE (tblAFFIRMATION_REC_TOOL LEFT JOIN tbl_TZero_Spns ON tblAFFIRMATION_REC_TOOL.CptySPN = tbl_TZero_Spns.SPN) INNER JOIN Entity ON tblAFFIRMATION_REC_TOOL.ReferenceEntity = Entity.ReferenceEntity
SET tblAFFIRMATION_REC_TOOL.[Scope Reason] = IIf(IsNull(tbl_TZero_Spns!SPN) Or (Entity!Test='EM'),tblAFFIRMATION_REC_TOOL![Scope Reason],'TZero Trade')
WHERE ((([tblAFFIRMATION_REC_TOOL]![Scope Reason])="Affirmation Eligible"));
the way it right now, it's running for about half hour..
Could that be IIF statement that slows it down ?
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Dec 14, 2014
I am new to access.
On occasion my access database all of a sudden begins to operate very slowly, I notice the queries take a much longer time to run.
Last week it suddenly began to operate very slowly after idling in excess of 30 mins
Today when I change the screen to design view and then back to form view once again it begins to operate very slowly. (yesterday was working fine on my desktop at home, I have not made any changes to the database with exception to saving and using the file this morning on the shared drive at work) If I shut down and re open it operates well but once again changing to design view causes the same issue. Sometimes compact and repair rectifies sometimes not.
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Feb 2, 2012
I have a database with a number of linked tables that are linked to tables in different databases (not a back-end).for example, I have table1 that is linked to table1 in K:databasedb1.mdb.table2 linked to table2 in S:datadata.mdb.and so on...
However, recently we have moved all our databases to a new location.
K:databasedb1.mdb is now residing in O:masterdatabase
and S:datadata.mdb is now residing in O:masterdata
and so on...
I'm now in charge of relinking all those tables to point to the new location.I would do this in linked table manager one by one but we have 100s of tables linked to multiple different databases in different location.is there a way to create a VBA code that will automatically do this re-linking process?
so,
1. find unlinkable tables
2. search its new location under O:master
3. re-link it to the new location
Database names and tables names have not been changed. Just the location of databases.
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Dec 14, 2007
Hi All,
I'm having trouble with access. Basically it has been very slow to load
(over 30 seconds when not opening a database) and when opening a database it just crashes.
Has anyone any idea what could cause this as it worked fine before ?
also would a reinstall help ??
-Elfman
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Jan 24, 2015
In my 2002 Employee table, I have a field which is a hyperlink to photos: C:photosemployee1.bmp (This is what I have entered into the Field as the Hyperlink)...However, from other PCs, I connect to this database and photo folder as a different drive letter, say Z, so when I am on the other networked PCs, and I click on the Hyperlink field, the data will not come up?
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Aug 8, 2012
I am having trouble relinking tables in my Front End database to my Back End database. My BE DB is on a network share and when I try using the link table manager to navigate to the correct folder I get an error message upon entering the network share folder that says:
The Microsoft Access database engine cannot open or write to the file "etworkfolder" It is already opened exclusively by another user, or you need permission to view and write its data.
I have permission to the folder and have ensured that this folder is a trusted location path.
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Jul 29, 2015
Is there a way to replicate NETWORKDAYS formula in Excel to Ms Access?
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May 29, 2013
I've been tasked with coming up with a table structure that will allow me to make a form that lists the available static ip's in my various network range blocks (we have multiple off-site locations and use different ip ranges at each site).
I have the vision in my head of the form, you would select the block range from a drop down list, then see all the available addresses in that range. From there you could assign mark one as used and it is no longer listed on the form (I'm thinking a simple yes/no checkbox). What my co-workers would love to see is if there were entering a new PC assignment and put one of those available IP addresses into that forms record (different table too) then the ip would get deleted from the available pool as well.
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Jul 24, 2014
I have developed a Microsoft Access 2010 database for my client and the database is split with Front-end/Back-end, the Back-end and the database is shared on Network, The client operating system and applications for all users are hosted and consistent and the service is delivered over Citrix.
The database some times corrupt the tables record and give a permanent #Delete Error, I have attached one of the database table and the screenshot of the error,
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Jun 19, 2015
I have split database (B/E is in the SharePoint library, F/E has users on a local PCs). Sometimes, when I update/add data (does not matter if it is via form or directly in the table) it looks OK, but when I re-open the database, the data are gone.
Problem is that I cannot catch the moment when data were not saved (sometimes data are saved, sometimes not). I can point out this: if I re-enter the missing data, primary key continues subsequently, it looks like the data have never been entered. I tried to use script
Code:
If Me.Dirty Then Me.Dirty = False
on "On Close" form event, does not work.
B/E is linked by VBA code and it looks OK (no error, Link Manager shows correct path). I suspect interrupted connetion to the SharePoint but I don't know how to check it. I implemented VBA script co keep open connection to the SP but the issue persists.
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Jul 22, 2015
I have linked tables from SQL Server using ODBC connection that their location never changes. I have used certain fields of those tables to create queries and make table queries to derive to the information I needed.
On these tables on SQL Server, there is new data added daily. Every day, midnight, there's new data records added of whatever transactions took place in that working day. how often do I need to refresh linked tables in this case to get the latest data added. I mean, once I am linked, the make table query using those defined fields, would it get the latest data added by default when the query is executed, or I must refresh linked tables using Linked Table Manager and then run make table query.
Also, if I want the access to automatically refresh linked tables, can I use the following code? I have added this code, and executing it through a button, but I don't see anything happen, the database becomes inactive for couple seconds (I guess while it is updating) but I don't know is it updating the tables for sure or not, though I am not receiving any error when executing the code through the button.
Function RefreshLinkedTables()
Dim tdf As TableDef
For Each tdf In CurrentDb.TableDefs
If Len(tdf.Connect) > 0 Then
tdf.RefreshLink
End If
Next td
End Function
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Apr 30, 2015
How to Update ODBC linked tables on ms access?
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Jul 16, 2013
I have linked tables in my db at the moment that rely on user dsn connections to an SQL server. I've been reading about DSNLess connections and want to try convert what i have to have permanent DSNless connections, but the code I've found doesn't appear to be working.
I've removed server specific details where i felt necessary, but when running the code i have it in place.
Code:
Public Sub RefreshODBCLinks()
Dim connString As String
Dim db As DAO.Database
Dim tb As DAO.TableDef
connString = "DRIVER=SQL Server;SERVER=<database ip address>;DATABASE=<
[Code] .....
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