Subject Re: Problems with gbak from 2.0 alpha to 1.5.2
Author Adam
--- In firebird-support@yahoogroups.com, Uwe Grauer
<mailinglists@o...> wrote:
>
> Ann W. Harrison wrote:
>
> >Uwe Grauer wrote:
> > >
> > > It isn't possible to go back to an older version in Firebird via
> > > backup-restore.
> > > Create the same db-structure in 1.5.2 and pump your data over
from 2.0
> > > alpha.
> > >
> >
> >The easier method is to use the V1.5x gbak utility to backup the V2.0
> >database through the V2.0 server. If you use the new V2 metadata
> >features - base collation and collation attributes - you'll lose the
> >data in them because V1.5 doesn't know to ask about that. But you'll
> >get a file that can be restored under V1.5.
> >
> >
> >Regards,
> >
> >
> >Ann
> >
> >
> I didn't know this.
> Does this method only work from 2.0 to 1.5.x or is this a general
> possibility?

It is the normal way of "downgrading" a database. Of course it only
works if you are not using one of the newer features. A data pump is
in that aspect "safer".

Adam