My situation is as follow
I have an Access datebase, where main tables are built and saved.
Also, I have 2 Access modules, which access informations in main tables in an Access datebase (I used Linking to table) and process information in query.
Questions: Linking to tables in another datebases will make perfomance of the module worse ? If the answer is Yes, then in which scale ?
Hi,
I have two databases in Access.
One of the database acts as backend i.e it has only tables including some Linked Tables(which are linked to some third database)
Other database is an executable in which all the tables are linked to the bakend database.
I am not able to link to the linked tables in the backed database. Is there a way of doing that?
I have a form in a DB and I would like to make it work so that when a user user chooses a job department (choice of 10). When they choose the department I want the next field on the form to only show the job classifacations(5 in each department so 50 if all show) in that department. Right now all I can do in make it so they need to choose from many job classifacations (50 of them as explained above where 45 have nothing to do with the department first choosen) and most of them don't relate to that department at all. Is it possible to do? I have limited macro knowledge and no code ability.
Thanks
I have a code for linking tables. It works on Access 32 bit.I modify the code for 64 bit (include PtrSafe after all Declares, etc...)But it doesn't work.When I try to chose database in dialog window, my program closed.
Code:
Public Function GetDbPath(path_name As String) As Integer
Dim i As Long
i = MsgBox("The path to database is incorrect" _
& Chr(13) & "Chose new path?", vbOKCancel + vbExclamation)
If i <> vbOK Then
DoCmd.Quit
Exit Function
[code]...
hi to all,
I have a software which links itself to a fox pro database/tables. Now i want to link some of these free tables or database from fox pro to access. Whenever there is a slight change in the fox pro tables/databases they must reflect directly into access database. Is this possible and how?
thanks,
ashley
Hi there,
was wondering if there is way to link tables in Microsoft Access, if the primary key is not matching 100%, for example lets assume that we have two table, with fruit type as their content.
Table1
FruitType
ORANGE
APPLE
PEAR
Table 2
FruitType
ORAN
PPLE
EAR
as you can see the content in the second table is somewhat incomplete or corrupted "Orange" is missing an "E", "Apple" is missing an "A", and "Pear" is missing a "P".
Thanking in advance
I'm trying to use a template to track assets-specifically this template:URL....Is there a way I can link an excel doc to my database that provides all of my data, that is thereby linked to other tables within Access?I want my data to be updated as it is manipulated within the independent excel doc when I open access.
View 6 Replies View RelatedI 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
Hi everyone
I'm starting a year-long university project which will be written in c#. The client app will be run on a LAN, with 35-40 users accessing the database concurrently, connecting to a database held on the server.
Could anyone tell me if Access can withstand 35-40 users at the same time? I found out that the maximum amount of users is 255, but what kind of performance impact(if any) will there be with 35-40?
I've searched all over the Internet for this, but I can only find references to using access behind a website, which isnt quite what I need. Any help would be great.
Thanks.
When I run the analyzer on all object types it recommends to change the data type for field "zip" (zip code) to "long integer to:
"benefit that table and potentially other objects in my database"
The field type is currently set to text, And I have the same setting for the same field in a separate table, yet it does not come up with a recommendation for that table.
Additionally, I don't seem to have the option "long integer" for the field data type???
jeds - using Access 2010
Hello,
Have a few questions after I ran the Access performance analyzer. Now these ideas are they good or just some generic recommendations. Dont know if I should take care of all these or not?
Anyone know if I should do all these things and about how I should do it?
http://img236.imageshack.us/img236/4755/perf1ff3.png
http://img169.imageshack.us/img169/7370/perf2ay4.png
http://img236.imageshack.us/img236/5223/perf3bm4.png
Hello,
I am attempting to convert some Access XP MDB files to Access 2007. I am experience some horrendous performance problems. We are a bit unusual in that we use Access as a RAD tool and almost all of our data resides in Oracle tables linked to by our Access front ends.
The issue I am experiencing concerns opening tables in the UI. If I open a table by double clicking it, a datasheet view is displayed (rather quickly) as usual, filling the page with information. The UI is responsive while Access populates its recordset in the background. (e.g. the the record count on the record navagtion bar is not displayed). As soon as I click in a column defined as a date, the UI hangs, network trafic and CPU usage rise dramatically and the Access Window displays "not responding". It appears that Access is attempting to retrieve all the rows in the table. After 3 minutes or so, the UI becomes responsive, CPU and Network traffic return to normal and the record count is now displayed (roughly 900K records).
This is "bad" (and also not what Office XP did). Please can anyone help?
Thanks
Vince Tabor
Hi all,
I am programming a database that contains approximately 3700 records stored in a relational table structure.
When I split the database and moved the tables to the server side, my performance worsened drastically: a query that runs in under 5 seconds when the tables are on the client side takes over 45 seconds in the split database (with tables on the server side).
I've tried a variety of solutions (including changing the subdatasheet name property to [None] in the tables, creating an MDE file from the MDB file), but they haven't helped much.
Any suggestions about how to speed performance are greatly appreciated! Thanks so much!
We are encountering severe performance problems when running our access database on our Network.
Symptom:
Huge drop off in performance when 2nd and subsequent users refresh links to chosen back end database. If the database is opened by another users front end database.
Takes up to 10 minutes to refresh the links to 120 tables in Back-end MDB database.
The system is designed as a split front and backend Access database. The back-end Data MDB database is located on a Windows 2000 server.
The first time a user logs on they are required to locate and Re- Link the tables from the back-end database which holds data for the current year. If they wish to work on another year they re-link the tables from the relevant back end database.
When running locally the Front end takes between 5 and 10 seconds to refresh ALL the links to around 130 tables.
When the back end is on a network drive the process takes about twice as long. But is still quick.
If another user has the file open via their own (locally held) front end, then the refresh link process takes between 5 and 10 seconds PER TABLE !!
This means that that it takes up to 10 minutes to complete the re-link.
Same behaviour if using Linked table Manager or refresh links using code
As soon as second user logs out of database the refresh link process speeds up.
The behaviour has been observed on a variety of servers and customer networks.
General data access is also much slower after 2nd user - but just about bearable. Data files are small – few records – occupy 7mb on disk.
Development Platforms – Windows XP / 200 clients, Windows 2000 Server hosts the back end database.
Front end is Access XP (MDB or MDE File) with al the latest service packs and security updates installed.
We have experienced this problem with a number of different systems running in various environments. But this wasn’t a problem with the old Access 1 database
HELP! Access should be able to support 10 – 20 users - we can barely run 2!
Hi folks!
I've been experiencing a very frustrating problem recently.
One of my databases crahes randomly, and I'd like to know if some of you have tips to helps me.
The database is splited in front-end and back-end, both on the server. I know keeping the front-end on the client PC will improve performance, but due to a high number of users (about 60 to 80) and the need of doing frequent updates, installing the front-end on each machines is not an option for now.
Users are not all directly connected to the server. Those who are directly connecte4d to the server (in building A) have no problem. Those who don't (building B) have extensive lags on opening (about 30 seconds), and on about anything that calls an heavy query, most often leeding to a crash. Access display the message telling that the datbase needs to be repaired and restart.
I tryed several thing to improve my queries, like eleminating most of GROUP BY and UNIQUE clauses and avoiding the use of functions.
I have a lot of conditional formatting in the forms, but I don't think this is the problem, since it is executed on the local machine (as far as I know).
My theory is that the lags cause some call to the DB to timeout. I just dont know how to fix that. Is there an option to higher the timeout delay?
My other theory is that the problem is caused by dropped packets during the connection to the DB. I tryed downloading large files (100Mb to 250Mb) from the server several times and never had a problem. Although the connection is quite slow, the ping is very small, like below 10ms to 20ms. Is there better ways to test a network connection, if possible without installing software (limited rights on the machine)?
Would using Replicas be a solution? What are the pros and cons of it? I never used them and know very little about it. My idea would be of putting a back-end on both servers, but I guess the data would not be as live.
BTW, I am using Access 2002 (2000 file format) on an XP SP2 PC.
Thanks to all of you patient enough to read all of this! I Hope some of you have some awnsers, tips or tricks!
I have an Access 2010 database .. and will be adding about 25,000 records a day to it. So it will get pretty big fast .. so 9 million a year. Is this too big for Access ?? Or is it more a issue of file size .. I know that Access 2010 can go up to 2 GB. I am interested in how I can maximize my performance and not have the database.The data is as follows .. One table. The other tables will be small, just this one will increase in size really.
Id .. Autonumber (primary key)
When .. datetime
Radio .. integer (indexed .. w duplicates)
Group .. integer (indexed .. w duplicates)
Type .. text 4
TransType .. text 2
I am considering a purge of old records if needed .. like only keeping the most previous 5 million records or some reasonable number. Like .. then I would think I should try to number my records backwards (using long int rather than autonumber and number records backwards on import) .. ie record 1 would be the most recent one and only keep the last X number of them for performance reasons.
I have 2 identical database in terms of structure but it differs in data.
Basically I would like to import data from subDatabase to mainDatabase and ensuring that there are no duplicate records.
I have used the "link to datasource method" through importing the tables to have the "updating" function.
However, this method also means that the records in mainDatabase are also imported over to subDatabase which I do not want.
Is there a method to ensure that the records are shared/update one way only? (i.e. import from subDatabase to mainDatabase and not main to sub?)
Currently trying to build a database for customer management and order placement/tracking. Want to set a couple of rules so that if I for instance click yes of billing and shipping address the same that the database will automatically fill the shipping address with the data I inputted for the billing address in the same table.
The other issue I can see I'll run into is, I want to be able to select one of the company ID's (made up of a three letter abbreviation of the full company name) in the product ordering table and it will automatically fill in the rest of the customer data (phone, email, address etc) data into that form.
I am doing a project where we are collecting home owner data and information on all the dogs in the household. The data for homeowner has an autonumber primary key because no field is unique or has been consistently collected. I am struggling to link the data for the dogs to the owners because an autonumber primary key will not work since not all homes have dogs. I need to have this set up so that people who are not tech savvy can look up each homeowner (or dog) and get the dog (or home owner) information. And to make things even more fun we need up to 15 potential dogs per household each of whom will have 18 different pieces of data collected.
It looks a little like this (and you can see my not matching ID issue):
Homeowner table
ID First Name Last Name...........Total Dogs
1 Max Maximus 5
2 Min Minimus 0
3 Mus Musculus 1
Dogs 1-5 table
ID Date Dog 1 Name Dog 2 Name .......Dog 5 Name
1 (Max's) 4/11/14 Bobby Billy Betty
2 (Mus's) 4/11/14 Jojo
Min will have no dog records at all, just home information.how to link the dog's to the homeowners .
I have been asked to design a database to replace our old excel sheet to log one of our customers server builds. It a four noded system and i require a seperate log for each node serial models of parts etc, qa checks.
I intitial started by just using one table but forgot the limit was 255 rows, i need about 600 - 700. So my plan is now to transfer to indivial table for each node. Then, a general table named Main for all my other details.
Although this seems simple, i now have the annoying task of being able to link them all together and produce a single PDF file to send to our customer whilst only entering our system serial number once to produce this.
My basic understanding will be to create a System Serial Number field in each table a link it via relationships, but if i produce a report with everything i need would it input my details for all four nodes? If so how would i set this up?
I will be splitting the database once completed and then making a ACCDE file for my techs to use.
I recently imported an excel file into access. Let's say it contained data for both domestic and international customers. With different things needed from each type of customer, once in Access, it became needed and easier to create separate tables- one for international and one for domestic. However, each customer needs their own unique id - and I need a way to link or relate the tables in a manner that it will not allow duplicate customer numbers between the two tables.
View 7 Replies View RelatedI have two tables called Hardware and Desk. They both have two fields called ChangeID and Priority.
What I would like to do is set it so that if we change the Priority in a record existing/created in 'Hardware', the Priority of the related record in 'Desk', also changes.
How can I achieve this?
Question for someone..... I was looking at the "LinkTables" in Access..... I see that I can link one database to another..... When I do this I can add the table to my relationship window... I have not played with this too much.. But looks interesting. Now, all the info I might add to this linked table is stored in the other database??? If this linked table is also linked to other tables in the other DB can I use those in queries? Not much covered (that I can find) in the Access help files on this sort of thing.
Thanks
I am looking to lonk tables in a database.
I have one table a pc tables which has a list of pc's
the other table is a pc software table which has a list of software
i want to build a form to show the pc's and their software how do i do this
I have a table with job info like: job #, job name, job addy.
I would like my end query to look like this: job #, job name, job notes.
I want the query to list all jobs, job names, and job notes for a particular week(we have a weekly meeting on the status of our jobs), so if I were to query the jobs for 6/26, i would get: job #, job name, and job notes for that date as fields in my query.
I am not sure how to accomplish this. Should I make a seperate table that contains job notes? If so, how would I accomplish this and create a relationship between the job info table and the job notes table?
Thanks in advance!
:confused: How can I link a table to one specific item in another table in order to avoid repeating information? (ex: school name that would be narrowed down to its different departments)
View 3 Replies View Related