Client & Server Scenario Access Databases
Oct 20, 2006
This post is really aimed at someone that has experience of network databases and the problems they can pose but if you can help at all that would be great!
I work for an insurance company and we have created a database for registering complaints on. The one we currently use is a single .mdb file which can be shared by up to 60 people at any one time. This is creating a lot of problems when the queries and some VBA code are run. I therefore made a server file which is just an mdb file with data tables in and NO forms or queries. This file is stored on a shared drive on the network server. We then created a client file which contains all of the forms and queries and code. This file contains linked tables to the server so when data is entered into the form, it "Sends" it to the server mdb file. The client is installed on each of the local machines c:. The problem with this was that if we made a change to the database, we would need to reinstall the client on every single user pc. This would of took ages. I therefore made an auto-update function that checked the version number on the server and if the server number was greater than the client number, a simple .bat fiile was run which copied the updated client file from the network to the relevant users local disk.
The problem we have now is that our IT department are concered that if we make a change to the client and all the staff log in at 9am for example, it will start doing multiple copying of a file around 8mb in size to around 60 machines. They are only running on a 2meg pipe so this could cause some problems. We are not looking to change the client & server idea but does anyone know if this will have a big impact and infact if the updates for 60 machine is the equivalent or lesser of 60 people sharing the single file i mentioned earlier. If the IT dept are happy with 60 users accessing the same file at the same time, which they currently are, why are they unhappy with it updating these machine using the new method.
Would really apopreciate any thoughts anyone has..
Thanks a lot.
Gaz
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Jun 18, 2007
Hello, I am new to this forum and hope someone will be able to help me.
I understand that when querying using a split MS Access database it retrieves all the data to the client machine and then applies the criteria (hope this is correct) at the client side.
If I were to link to Oracle XE tables via ODBC, does a query using these linked tables still bring across all the records to the client or will it run the query on the server and just bring down the records matching that criteria?
Many thanks in advance...
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Nov 6, 2007
I have a problem with my query which works fine prior to upsizing to SQL Server. Now I have an Access Front-end with SQL Server (2005) back-end client/server setup. This problem has bugged me for over one full day and I can't find anything that seems to solve it.
The error that comes up is this:
Run-time error '3146':
ODBC--call failed.
[Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near '='. (#102)
The line that's producing the error is a DoCmd.RunSQL "SELECT tblPBC..." The full statement is below. I can't seem to see anything wrong w/ my syntax below....
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Nov 22, 2005
I have split my database, the data is in a DB on the server and the forms, reports, etc is on the client desktop. My question is "Is there an advantage to having all of my combo box queries (Lookups) on the server side (defined in the table as a combo lookup) or should I put the all on the form so that they reside in client side DB.
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Nov 9, 2005
Hi all
Brand new on here and desparate for some help and guidence.
So far with Access I have just used it as a store of addresses to mailshot prospective clients.
However, I now need a more complex database and this is where you might be able to help.
First things first, most of my clients are in universities. This means that I can be used by more than one person in more than one department at a university.
Does this mean I need to do three tables:
1/ "University Details" which gives the address details
2/ "Department" storing the departments of the unis we work for
3/ "Client" Name of the client(s) in that department.
After this how do I link them?
Thanks
Razieluk
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Oct 10, 2005
I've made an adp (access project ) file. I want to permit some users to look in the data but i'm not certain they have access installed, can i give them read-only rights by placing a data-access page in a network map? Can they use the functionality of a data-access page without having access installed?
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Aug 10, 2006
Hope I am posting my question in the correct place. First of all I am entry level user in access, but knowledgeable in excel. As I am working with data containing over 65,000 rows I decided to use access however I don’t know how create a function that will work give the same result as (vlookup) in excel. Scenario case: first column “Serial Number” contain a list of serial numbers, 2nd column will be fed manually or by a bar-scan, the third column should show the value of “1” if the value in the 2nd column exists in the first column else a value of “0” should appear
The validation formula in excel looks like: =IF(ISERROR(VLOOKUP(B2,$A$2:$A$65000,1,FALSE))=TRU E,0,1)
Serial Number Confirmed Serial Validation
141614661
141614662
141614663
141614664
141614665
141614666
Thanks in advance,
Tarek
tarek_habal@yahoo.com
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Apr 20, 2006
I know how to do a "Like '*xyz*' " type condition in a query. How do I set up a "Not like '*xyz*' " type condition in a query?
Thanks for your help. This forum is wonderful!
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Jan 28, 2008
All -
I have another update query that is basically looking at all of the Enrollment ID's that are associated with a ClassID. If each EnrollmendID has a Graduation date and the Graduated check = yes, then I want to place the current date in the Closed Date field for the Class.
I can get a select Query that shows all of the classes and all of the EnrollmentID's but I'm not sure how to tell the query, "For Each ClassID, If All EnrollmentID's have a Graduated Date and Graduated = Yes, Then Class Closed Date = Date()"
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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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Jan 29, 2007
Hi,
We are using MS Access as the backend to our application which has been written in delphi and have run into a problem that we have not been able to solve. Hoping someone has run into this before or any suggestions are much appreciated.
The problem:
MS Access runs slowly for client PC's after a update or insert.
- I am using ADO to connect to the Access database, which is using the OLEDB for ODBC Provider.
- The application I have sends queries (both select and update) direct to the database (ie client datasets are used).
- When only select queries are sent to the DB the response time is fine.
- When an update or insert query is sent to the DB the response time of the PC it is run on is fine.
- When an update or insert query is sent to the DB the response time of any other client PCs running the application take about 5 to 6 times longer to run queries than before the updateinsert query was done. This is the issue that I am having.
- Any client PC's that display this slower response time, can have their response time returned to normal by closing down the application and restarting it.
- No more than 3 PC's connected at one time to the DB.
- Maximum database size of 150MB.
- Problem occurs on various network setups, including domain and workgroup.
- Problem only surfaces for users at times well after any application updates have been applied (ie several weeks after, and then once the problem starts it continues).
- It does not occur for all user sites.
I have tried and thoroughly tested the following to no avail...
- Applied all the latest microsoft updates
- Closing and re-opening the ADO connection after updatesinserts
- Changed the ADO provider to Jet 4
- Saving the DB in Access 2000 or 2002 format
- Set the Default record locking to 'No Locks' and 'All records' and 'Edited record'
- Used 'Open databases using record-level locking' selected and unselected
- Many application techniques (using delphi) to work around the issue. Many of which have indeed improved general response times, but have not resolved this particular issue.
The only thing I have tried that has resolved the issue is... - Upsizing the database to SQL Server (Unfortunately this option is not a viable one for us at this stage, so I need to find a resolution to it while still using the Access DB).
Thanks for your help
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Feb 28, 2013
I have developed .net application ....at back end I am using ms access database. When I deploy my application at client end , I want only my ms access database should accessible to application only. Client should not be even to see which type of database i am using or its business logic .
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Aug 29, 2014
In the test db included the report works fine if every Rep (representative or User/Admin) has records assigned. But, for example, if I go to the table and re-assign the first record to another user/admin (pick list in the table field [Rep]), then `User01’ will have no record assigned at all. Then an error message appears: The Microsoft Office Access database engine does not recognize 'User01' as a valid field name or expression. And no report is produced.
I wanted to try solving it with the info on thread searched by: "cross tab query reports", (13th result) but to be honest I really don’t know how to implement.
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Jul 31, 2013
I'm not sure if Access is the right program to use for this scenario as I only know the basics on creating the database.
I want to be able to create a client database and then be able to generate a number of standard template letters at any particular time for selected clients.
I don't want a mail merge!!
Can access be used for this?
Ideally I would like to create a form for administrators to use to input new client info and update existing clients info and then just be able to click a button (or the like) to generate the standardized letter for a particular scenario.
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Apr 28, 2013
I have an acces form to input client orders. Each order has its own order number a different client. On the same form I have a button to generate a report based on the inpuuted data on the same form which works perfectly fine.
Now I need to use same report to save each order in a specific folder on my computer in pdf format. However I would like to have the file generated as follows ordernumber "-" clientname.pdf. This way each order is saved in the same folder without overwriting the previous one.
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May 22, 2013
I have a form and subform. The main form shows some customer details, and the continuous sub form shows that customer's charity donations.The code below runs when the form opens, and binds ADO recordsets to the two forms. The binding appears to be successful.
However whatever I do I can't make the subform update correctly to show the relevant customer donations. For example, when I use the **'d lines to update the link child/master fields, I get a "Data Provider Could Not Be Initialized" error.
Code:
Private Sub Form_Load()
Dim cn As New ADODB.Connection
Dim rsCust As New ADODB.Recordset
Dim rsDons As New ADODB.Recordset
[code]...
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Oct 20, 2006
Hi,
I curently have a website that has a registration page on it that uses a simple access database that contains a single table with the same fields on as that of the reg. form. What I want to do, in one way or another, is to make some sort of macro that starts once some datails have been submitted to the database using an SQL statement I made within Frontpage, send an email to the registrant telling them what there customer number etc (autonumber in database) and various other welcoming messages etc.
The SQL statement is along the line of INSERT INTO...
Am I thinking along the right lines with a macro or some code or is the access database literally rendered to a table/number of table and thats it?
Cheers folks
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May 5, 2007
Hi,
Recently, i had upgraded my computer with some new hardware, therefore i did a fresh install of win xp sp2.
Now I noticed that after i installed all the usual software including microsoft office 2003, when i am opening a ms access database and i open the first form, most of the fields on the particular form (no matter which form in the database as long as it is the first one) display just a value on most field (i am noticing those fields with text datatype), and i am noticing that the number shown is the same as the autonumber i have for that record. Eventually, closing and re-openining the form will fix the problem. this is happening with all of my access databases, some of which i have been using for ages.
Actually, i have tried running the detect and repair tool from the microsoft access help menu to no avail. I have even tried importing the database objects to a new database but still to no avail. Finally i also tried uninstalling and re-installing microsoft office, and the problem is still persisting.
Any idea what might be going on, and hopefully a resolution to sort out this nightmare?
Thank you very much all for your attention.
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Jul 22, 2006
Hi,
I've asked this on a few other websites with limited or no success.
this is from one db. this table originally had about 20-30 different fields,
WarehouseNum ItemNum load_date Shipped
101 31 6/26/2006 200
101 31 6/27/2006 180
101 338 6/26/2006 162
101 338 6/27/2006 357
this table is from another db. Notice how WarehouseNum is '9' instead of '1' and itemNum is '000'. This is just one of many impediments I face. As well, none of the table fields are the same, I changed them here to make it easier to work with.
SupplierNum ItemNum WarehouseNum PlannedDelDate DeliveredQty
869747 00031 901 6/26/2006 250
869747 00031 901 6/27/2006 300
869747 00338 901 6/26/2006 490
869747 00338 901 6/27/2006 490
The goal here is to query the two simultaneously, perhaps with linked tables, type in an ItemNum using a parameter and know for instance that on the 26th, we received 250 item31 and shipped 200 for a remaining balance of 50. The 50 is what I'm after. Basically, my company uses one program for sales and another for purchasing and absolutely nothing for inventory management. I started with this company about 3 weeks ago and unless i can implement some kind of temporary solution, it will drive me insane.
Advice? Best approach? As well, this db will use data on two different servers
Thanks for the help.
As well, my access experience is limited and our company I.T. is seriously backlogged, besides which, I would like to learn how to do this myself.
Thanks again
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Feb 21, 2007
Access 2003
I've inherited an Access Application which has
(1) a number of linked tables that are used to seed the underlying SQL Server database.
This system has been set up and is working in Development. My task is to move it to UAT but with regards to point (1) above I can't see any alternative but to copy the Access Database, create a new System DSN and re-import the External Data from the new DSN. What I'd like to do is use the same Access Database to point towards DEV or UAT or PRD. Is this possible to do this or am I stuck with maintaining 3 different Access Databases ?
I am a developer with many years of experience but my Access knowledge is limited so any pointers would be helpful.
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Feb 22, 2008
I'm having a problem on a workstation that I've always used to create databases in Access. When I open any of my saved .mdb's I get a the error "end query expression" with the table name. The message gives me the option to click OK or Help and Help refers to "<Message> in query expression <expression>. (Error 3075)".
I've copied the .mdb's to another PC with Access installed and they open with no problem and I've removed and reinstalled Access on the problematic PC but still the same problem.
Also, I have a UPS Worldship shipping application that uses an Access database and when it opens it gives me a Micrsoft Visual C++ runtime error then closes, which may or may not be related.
I get the sense that something is corrupted in either Access or Windows XP but I'm not sure where else to look.
Any ideas?
Thanks,
Stuart
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Aug 26, 2004
I want to publish my access database on my local pc and was thinking of using something like Dreamweaver to do this. Is this possible? I don't want to put this on the webserver but on my local machine (only a few people will be connecting), and I've read something about a Personal Web Server so this could be done. Does anyone have any ideas / thoughts on the best way to do this? Oh, I want the database / web to be "live" so the tables get updated as they are changed over the web.
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Jul 31, 2014
I have an access db as the backend with the tables. Then multiple front end access dbs that link to the tables (as external sources). The front end dbs are setup with different forms on a per user basis, depending on their role. From my user db I want to be able to request information from another user. I want something in their db to pop-up and request the information.
I was thinking about approaching it using the datamacros. I thought maybe each front end db could have a messages table that the main db and other front ends link to. Then whenever they add data to your specific table it would respond and ask the user for the information. The info would then populate back into the message table where it could be retrieved by the requester.
Example: User A opens A.accdb and has a table called A_tbl. User B opens B.accdb and has a link to A.accdb.A_tbl. User B adds a record to A.accdb.A_tbl with Field1 = "what is your name". User A receives a pop-up with the info from Field1 and responds in a textbox for Field2. User B can then look at A.accdb.A_tbl and see the response as Field2.
Another option I thought of was simply trying to get one db to run a form/macro on another db remotely.
Example: User A opens A.accdb and User B opens B.accdb. User A clicks a button on one of his forms and it opens B.accdb.FORM in the session of User B. User B fills out the form and submits. User A retrieves data from shared tables as normal.
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Sep 27, 2012
I have to coordinate a dbase in the US, one in the UK, and one in the KSA. I have multiple documents that may, or may not, be in each of the three dbases. I need to merge all three, and maintain them so that the document additions, as well as any changes associated with that document, (i.e. "revisions"), are updated. Having looked at access and having read through some of the Access forum questions, I understand that it can do that, but after having identified the information from the dbases that will go into access, I'm trying to establish a consistant process for maintaining and updating it. Can I export my information from each of the dbases, into an excel spreasheet, (1 for US, 1 for UK, and 1 for SA), and have the access dbase search for the document number, compare the data following the document number, and if it's the same ignore it, and if it's different, update it?
I'm trying to muddle through this and get access and excel to do as much of this as possible, as it's a very tedious and time consuming process to manually check each one, one or two times a week.
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Aug 22, 2012
I currently have two Access Databases (one with the raw 'data' and the other with the queries and reports that turn it into 'information' - the data database links into the other).
For contingency purposes, I now want to move both Databases onto sharepoint in case I have a system failure on my laptop (I don't have a server I can put these on). When I upload these onto Sharepoint the second database still seems to link to the file on my computer..
Is there a way I can get a Database to link into another database that's held on sharepoint?
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Sep 20, 2006
Hi All,
What's the best way to go about protecting an MS Access database online? Hoping to launch tomorrow, but no can do without protecting the DB first
Basically, I have a database containing some personal information and I need to block people from downloading it, while still allowing my ASP pages to read/write/modify its data.
Can anyone point me in the right direction here? Any relative links, methods, tutorials, etc, would be a fantastic.
I've looked into User-Level Security Passwords, but am not sure if there's a better way to achieve what i'm trying to do (i.e. setting up specific access rights to the folder in which the MDB file is contained).
Thanks in advance...
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