Upgrade in Derby is just booting the old db with newer Derby jars in the CLASSPATH and passing the
appropriate properties in the url.

However, I do agree the current location for determining the Derby version does seem a bit strange and given the choices I think this could go to the "Preparing the upgrade" under a sub section say "Determining the Derby version"
or something related.

And possibly adding a line to check the Derby versions being upgraded from and to to be make things clearer (?).

http://db.apache.org/derby/docs/dev/devguide/tdevpreupgrade.html

Something like:

Before connecting with the new software:

Back up your database to a safe location using Derby online/offline backup procedures. For more information on backup, see the /Derby Server and Administration Guide/. *Please check the Derby version being upgraded from/to*. If you do not perform a soft upgrade, then once the database is upgraded, it cannot be reverted back to the previous version.

-Rajesh

Laura Stewart wrote:

The file:
http://db.apache.org/derby/docs/dev/devguide/tdevupgradedb.html

discusses how to upgrade a database.  It contains a description about
determining the version of Derby. This text seems out of place in this
task where the purpose is to upgrade the database. Is the text about
determining the version in the proper place... right after the step to
connect and upgrade?

Shouldn't the user determine the version BEFORE they upgrade?

Should this text be in the prerequisites?

Or maybe in the topic "Preparing to upgrade"
http://db.apache.org/derby/docs/dev/devguide/tdevpreupgrade.html

Please advise.
-
Laura Stewart


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