Connecting To Multiple Databases - Performance Recommendation Please

Nov 29, 2006

Hey Access people...

Does anyone know if it is better as a general rule (server performance wise anyway) to connect to a single database with many tables or multiple databases with fewer tables??

In this case I have a small calendar database and large navigation/metadata database -- both are MS Access & connected to the same ASP page.

Can anybody make a recommendation here??

Many Thanks!!

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Tables :: Connecting Refreshing Links Between Databases

Feb 13, 2015

I have a club member registration application consisting of a program database and a data database. They reside in the same directory. There is an autoexec macro which runs at the beginning. This macro has to find the DATAdb and make sure that the required tables are linked (Not all tables). If it cannot find the DATAdb and then has to make a call to the user to use a different procedure.

Now to find the DATAdb I have used the following code that works. The function GetPathAndName parses the string db.name and outputs the path and name of the PROGdb. Up to here no problems.

Code:
GetPathAndName db.Name, FrontPath, dName

Then I use the following code to get the fullpath of the last database used and thereby find the path and name of the last DATAdb. The path of PROGdb is used in place of the existing path of DATAdb to check whether the file exists.

Code:
Dim rs As Recordset, cPath As String, cName As String
Set rs = CurrentDb.OpenRecordset("SELECT Database, Type " & _
"FROM MSysObjects " & _
"WHERE ((MsysObjects.Type) = 6) AND ((MsysObjects.Name) = 'MembersTbl') " & _
"ORDER BY MsysObjects.DateUpdate DESC;")

[Code] .....

As the final step I use the table definitions to refresh links that already exist and connect tables that are not linked The code is below. But I can not get it to work. It links 7 tables instead of 16 and when tested in different folder says invalid operation and so on. There is fundamental error some place but I could not figure it out.

Code:
On Error GoTo Error_Linking
Debug.Print "TableDefs.Count="; db.TableDefs.Count
For I = 0 To db.TableDefs.Count - 1
Debug.Print "TableDefs("; I; ").Connect="; db.TableDefs(I).Connect
Debug.Print "TableDefs("; I; ").Name="; db.TableDefs(I).Name

[Code] .....

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I try to call one database forms and tables into another database without creating tables and forms.


Database where (target) i need to open forms and tables:
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Database from where (source) i need forms and tables
accountreceivable.mdb


I try to call forms and tables from accountreceivable.mdb into insurance.mdb. Do i use the below function in insurance database to open tables and forms from 2nd database. If i do where should i write this function i mean in the module of insurance database or in the module of accountreceivable database. How to i call that function

Function OpenForm(byref vformname as string) as boolean
docmd.open vformname,,,,,acdialog


OpenForm = true

end function


Thank You.

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Hi Folks,

Hoping someone may be able to point me in the right direction.

I've got several databases used for different tasks, in which I just added an hyperlink to them from a front end database. All my team could access any of the data bases at once. It was using the WINNT/MS OFFICE mdw file.

Since my last question, I've now managed to set up a MS Workgroup Administrator file, which is on a shared drive. Everyone has joined this workgroup, and when people logon it now greets them with their name and records their name against any tasks. Thanks to everyone for their help with setting this up.

But since I created this new workgroup, we can't access more than one database at at time. It comes up saying 'mdw file is in use'. However, one person in the office can. I've looked at all the setups for individuals, and can't see any difference between ours & this one individual.

Am I missing something obvious ?
Cheers
Karen

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Ok, this is only a very general question, but I'm hoping somebody here can give me some general advice.

Basically, I have three separate database which I've written for my company. They were all written at different times, hence the fact there are three and not one that does three things. The first is used to raise, edit, delete, and track RMA records for returned merchandise. The second is used to raise, edit, and track Training data for people who have undergone my training course. The third is my main database that contains all of my clients' details, plus a log of all calls taken from them. This is the largest and most complex of the databases and has some fairly advanced relationships setup to enabled hundreds of call logs to be linked to a single record of necessary.

Now all three databases have been written using the same kind of structure. They all use popup modal forms to prevent malicious/accidental damage to the database by the staff who use them. They are all locked down and Access cannot be broken into whilst they are running. they all also have their own primary keys.

All these databases work just fine, but I'm now a little tired of each staff member having three shortcuts on their desktops, depending on which database they need to use. what I'd really like to do is somehow merge all three of these databases into one single database, and alter the switchboard accordingly to allow users to access any of the three parts of it.

The problems - as I see them - are: (a) that my main database uses a lot of relationship links to maintain certain records, whilst the other two use none, and, (b) that each database, having been written separately, has records with their own ID keys and autonumbers.

I did toy with the idea of having some kind of function on my main switchboard that would allow me to close the current database being used and open another, all without closing Access, but I haven't been too successful in my tests...

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I'm hoping someone out there can help me out with a problem. I work for a company that creates websites for car dealerships. The process involves me inputing data to a standalone program which creates a database for each dealer. When I upload the information, the program I use creates an inventory.mdb which is accessed through the asp pages I have.
examples of finished product are:
http://maconsales.com/freedom/inventory.asp
http://maconsales.com/freedomnew/inventory.asp

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Is what I'm trying even possible? or am I looking at a long night of data entry?

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Thanks in advance

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