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From "Sai Pullabhotla" <sai.pullabho...@jmethods.com>
Subject Re: Merging two Derby databases, update database structure to old one
Date Tue, 14 Oct 2008 18:58:30 GMT
You can run the ALTER table statements to add the new columns.

Sai Pullabhotla
Phone: (402) 408-5753
Fax: (402) 408-6861
www.jMethods.com




On Tue, Oct 14, 2008 at 12:53 PM, Juho Tykkälä <juho.tykkala@phnet.fi> wrote:
> Hi
>
> I have a Derby database with 10 tables and some data inside them.
>
> Because I'm a software developer and have many customers
> with their own databases and their own data inside them. I have also
> one empty database for developing purposes on my own.
>
> Can I inherit the changes I made to my own database to my
> customers databases without touching data in them?
>
> e.g. If I add two columns (color & weight) to my table (vehicles)
> can this change to be inherited to all other databases with the same
> table but different data in them?
>
> Why I ask is: If I'm going to add more features to my software,
> which uses Derby database, and these features need database
> structural changes, how can I update my customer's old software
> versions without touching the data inside their databases. Just
> need to add few columns more and don't want to clear data inside database.
>
>
> --
> Juho Tykkälä
>

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