Re: function / varchar width... varchar2(4000)?

Thanks for the help. Out of curiousity, why did it use 4000?

thanks,
scott

"Thomas Kyte" <tkyte_at_us.oracle.com> wrote in message news:vuth6skqhpb2ek2e7gd01ms6pp00bqs2hv_at_4ax.com...
> A copy of this was sent to "W. Scott Moore" <sirws_at_hotmail.com>
> (if that email address didn't require changing)
> On Tue, 28 Dec 1999 10:30:19 -0700, you wrote:
>
> >I have a function:
> >
> >function APN_NUM_KEY_F (bookmap IN NUMBER, width IN NUMBER)
> > return varchar2
> > is
>
> [snip]
>
> >
> >and when I call it like:
> >
> >select apn_num_key_f(apn_map, 3) from lb_parcel_pnt
> >
> >it works fine. The same goes when I use it in a view like:
> >
> >CREATE OR REPLACE VIEW LB_PARCEL_POLY_V ( PPOLYID,
> >APN_BOOK, APN_MAP, PARCEL_ID, APN
> > ) AS select a.ppolyid, c.apn_book, c.apn_map, c.parcel_id,
>
>
> substr( apn_num_key_f(c.apn_book, 3) || apn_num_key_f(c.apn_map, 2) ||
> c.parcel_id, 1, 10 )
>
> >as APN from lb_parcel_poly a,
> > lb_parcel_pnt_poly_join b,
> > lb_parcel_pnt c
> >where b.ppolyid = a.ppolyid and b.ppntid = c.ppntid
> >
> >however, when I am using toad to look at the data, it says it is a
> >varchar2(4000), when I would like it to be a varchar2(10).
> >
> >Any ideas would be greatly appreciated.
> >
>
> substr'ing it will work.
>
> >Thanks,
> >Scott
> >
>
>
> --
> See http://osi.oracle.com/~tkyte/ for my columns 'Digging-in to
Oracle8i'...
> Current article is "Part I of V, Autonomous Transactions" updated June
21'st
>
> Thomas Kyte tkyte_at_us.oracle.com
> Oracle Service Industries Reston, VA USA
>
> Opinions are mine and do not necessarily reflect those of Oracle
Corporation Received on Tue Dec 28 1999 - 12:17:46 CST