Correct, you can add columns but not change or delete existing
columns.
On Sep 11, 2:06 pm, Steve <[email protected]> wrote:
> What is it exactly you are trying to do with your statement?
>
> I think you can only add columns during an upgrade (not change
> existing ones).
>
> On Sep 10, 2:28 pm, Marco Nelissen <[email protected]> wrote:
>
> > On Thu, Sep 10, 2009 at 8:44 AM,
>
> > [email protected]<[email protected]> wrote:
>
> > > Hi Droids!
>
> > > I get a SQLiteException if I try to issue an alter statement in the
> > > onUpgrade method of SQLiteOpenHelper subclass:
>
> > > Can't upgrade read-only database from version X to Y: /path/to/db
>
> > > That makes no sense at all! Where did I go wrong?
>
> > When a database fails to open in read/write mode, the system tries to
> > open it in read-only mode. That is probably why you're seeing the
> > message about the database being read-only.
> > So you need to figure out why your database failed to open initially.
>
>
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