Re: Best practice for loading data into relational tables

On Mar 18, 8:51 pm, Anoop <anoopkum..._at_gmail.com> wrote:
> On Mar 18, 4:14 pm, DA Morgan <damor..._at_psoug.org> wrote:
>
>
>
> > Gints Plivna wrote:
> > > I agree with others that SQLLoader is the way to go. However that
> > > won't help you much with fk errors, unless of course you disable them
> > > in advance. So here you can use intermediatte tables without any FK
> > > logic just load data in them. After succesful loading use insert
> > > into ... select from... And here you can quite easily insert firstly
> > > the very parent rows then children, then grandchildren. Of course
> > > there might be some circular FKses but this is quite unusual case,
> > > then you'd have to either disable a few FKses or make them deferred
> > > and commit only at the very end of insert process when everything is
> > > OK.
>
> > > Gints Plivna
> > >http://www.gplivna.eu
>
> > Or use deferrable constraints which would likely be better than
> > disabling default immediate constraints.
> > --
> > Daniel A. Morgan
> > Oracle Ace Director & Instructor
> > University of Washington
> > damor..._at_x.washington.edu (replace x with u to respond)
> > Puget Sound Oracle Users Groupwww.psoug.org
>
> thanks so much for the really good suggestions.
>
> I think I got a lot of viable solutions, I did not know about Toad
> supporting Excel data natively. The only thing is Toad is a paid
> software!
> But I think what I am planning to do is a combination of disabling
> constraints and using sql*loader to take care of the PK & FK.
> Unfortunately I think I have the rare case of circular FK's, but
> disabling the constraints seems to be the way to go for now.
>
> I also liked the idea of putting the insert into & insert into (select
> from) into a shell script with debugging info (just echo). I am pretty
> adept at shell scripts & awk so it looks attractive, but at the same
> time it is a lot of unncessary code and I think the sql*loader option
> is equally easy to do.
>
> Thanks to all and really appreciate the solutions suggested by each of
> you.
>
> Anoop

 It is nice to see responses to our answers so we know whether we helped or hindered progress. Thank you for the feedback.

   Ed Received on Wed Mar 19 2008 - 08:59:19 CDT