Question about onUpgrade method android

Question

I have an application published in the android market, and now I want to make a new version with changes in the database. The problem is, my version of the app that is already p

Answer 1

So what onUpgrade method will be called, from the old or from the new .apk.

From new .apk. Old one is gone at this point.

Can I keep the data from the tables?

You have to code your upgrade in such a way that you retain data that you need including old data as required.

Answer 2

Dropping the tables will kill all of your current data. In order to preserve the data, you're going to need to write a custom onUpgrade method to do this. Here's a previous post that discusses this and may give you some ideas on what you need to do:

SQLiteOpenHelper onUpgrade() Confusion Android