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What is the best approach for a for an application Upgrade with .net

Hi,

I alreay developed an app that is using a SQL server database. My app is still under some development and ocassionally I have to change my database schema. The thing is that when I upgrade my app in the client machines I have to uninstall the current version to install the new one and with this my databases and current data are lost due they are part of the setup project.

My question is about some way to keep my databases on the pc after uninstall and then include the new schema changes in my new installation, so when I install the new version all data remains.

Thanks for your hints.
Oct 18 '07 #1
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