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Split Access Database on eRoom needs to link to back end stored on eRoom

Posted on 2008-06-18
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Last Modified: 2010-04-21
Hello Experts:
I have a split Access database stored in eRoom and want to move the backend portion of the application to eRoom, too.  Does anyone know if it's possible to re-link the database to tables sitting in eRoom?  When I tried to relink the application, I supplied the URL for the back-end in eRoom, it responded with "not a valid file name".  Not sure if this is even possible.  Anyone have any experience/success with this?
Betty
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Question by:cninghm
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bandriese earned 250 total points
ID: 21816835
I assume that what you're trying to do is make the access database available to multiple users via a web site. I don't think this is going to work in regards to the back-end database. The issue is the protocols being used. When the database is on a local or mapped drive, your using the SMB protocol (I think that's right). This protocol allows for a constant connection to be open to a file and can create file locks (required for access databases).

Through a web connection, you're using a http protocol, which does not allot for constant connections to remain open and thus can't support file locks either. With http, the client sends a single request, and the server sends back data in response to the request. Something like GET HTTP 1.1 /  (send me the home page). One could use http to download a copy of the database, and run it on the local machine (works fine for the front-end portion of the database) but not to have a real-time connection open to the database (what you need for the back-end portion).

You might experiment with Replication. In other words, create a replicated copy of the database that can later be synchronized with a master. I don't know if that will help in your situation.
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Author Closing Comment

by:cninghm
ID: 31468569
Thanks, you answered my question.  It's not possible.  Our current way of doing things is to have the app sit in eRoom, and the database sit on a network server (accessible to internal people).  That works fine. But, we have an external client who needs access to the database.  Without a VPN, we can't give the client access to our network server.  So, they're unable to connect.  I thought if we could move the backend to eRoom, too, we might have a solution.  Thanks for your explanation.
Betty
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