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Access ACCDE Question

Posted on 2011-10-08
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Last Modified: 2012-05-12
I have a Front End Database that I went ahead and created a ACCDE version from. I have noticed that when I open the ACCDE version it creates a Record Locking File for the FE database as well.  I would have thought that the FE version is untouched by the ACCDE version.  Am I doing something wrong?
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Question by:seamus99
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LVL 58
ID: 36936378
<<I have a Front End Database that I went ahead and created a ACCDE version from. I have noticed that when I open the ACCDE version it creates a Record Locking File for the FE database as well.  I would have thought that the FE version is untouched by the ACCDE version.  Am I doing something wrong?>>

  The DE version of a DB is the same, but with all the source code striped out.  Only the "compiled" p-code remains in the VBA project, so no design changes are possible.

  Other then that, it operates exactly like a normal DB in terms of operation, locking, etc.

Jim.
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LVL 75
ID: 36936444
"I would have thought that the FE version is untouched by the ACCDE version."

What do you mean by untouched ?
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by:seamus99
ID: 36936558
What I mean is I look at the directory ad there is a record locking file for the FE database
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LVL 75
ID: 36936564
Well then, JDettman has already explained why that is.  Is there any particular issue with this for you?

mx
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by:seamus99
ID: 36936575
Well if someone has the de version open I can not change the design in the FE accdb data base.
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LVL 75
ID: 36936584
Not following ...?
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Accepted Solution

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Jim Dettman (Microsoft MVP/ EE MVE) earned 2000 total points
ID: 36936594
<<Well if someone has the de version open I can not change the design in the FE accdb data base. >>

 That is correct and the way it works.  Design changes to a DB require exclusive access. besides which, you can't make changes to a DE database (with anything that involves code).

 You must make your changes in a accdb, optionally convert it to a accde, then give them a copy of that when their not using the app.

Jim.
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Author Comment

by:seamus99
ID: 36937078
Right I am making changes in the FE ACCDB database, what I don't understand is I thought the FE ACCDB database is seperate from the FE ACCDE database.
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LVL 58
ID: 36942213
<<Right I am making changes in the FE ACCDB database, what I don't understand is I thought the FE ACCDB database is seperate from the FE ACCDE database.>>

  It is.  Changes you make in a ACCDB don't automatically show up in a ACCDE.  But you can't create a ACCDE on it's own.   You take a ACCDB and convert it into a ACCDE.

  However where you may be running into a problem is if they are in the same directory.  You should never have DB's with the same base name in the same directory (i.e. myApp.MDB and myApp.MDE).

  If you do, your going to have problems.  Access (JET) creates a locking file to track users and place locks.  In this case, the locking file ends up the same for *both* DB's (myApp.LDB).

  If you had someome using myApp.MDE, and you went into myApp.MDB, Access would tell you that you don't have exclusive access to it.

  Usually where you see this is that someone creates a workgroup file with the same base name and then places it in the same directory as the DB, the same thing would happen with a ACCDB and ACCDE.

Jim.
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