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 Post subject: In-memory database
PostPosted: Mon Oct 03, 2005 1:10 pm 
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Joined: Mon Oct 03, 2005 5:46 am
Posts: 8
I'm interested in the in-memory capabilities of the valentina database. Does anybody know if, when in-memory, the database is single user or can it be multi-user?


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PostPosted: Mon Oct 03, 2005 4:14 pm 
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Joined: Fri Sep 30, 2005 8:05 am
Posts: 61
Location: Edinburgh, Scotland
I don't know anything about Valentina, but I can tell you that if a database is in-memory, without something acting as a server, it won't be able to be used multi-user.

As for databases being used by multiple processes on the same machine - your faced with the same problem. Memory can't be shared across apps.

Of-course, if Valentina has a special shared library that can share the database, then what I've said may be wrong.

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Charlie Boisseau
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PostPosted: Wed Oct 05, 2005 1:18 pm 
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Joined: Tue Oct 04, 2005 2:27 pm
Posts: 55
Location: Atlanta, GA
The only ways that I know of to make a Valentina database multi-user are:

1) Use Valentina Server (easier/more expensive) <http://www.paradigmasoft.com/en/products/business/VSERVER>

2) Write your own "server" wrapper to expose the data you wish to share (harder/only costs you your time and efforts)

The in-memory feature of Valentina simply allows you to create databases to manage data that you do not wish to actually store since the data will be "thrown away" once you exit your application. I could be wrong, but I believe the new REALSQLDatabase (SQLLite) included with RB2005 is also capable of in-memory databases, but again, I don't see how this would help you address your multi-user issues.

Take care.

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-John
RB2008r2
Mac OS X 10.4.10
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