How do I get a recid value from a just inserted record

Hi all,

I have 3 tables (extremely simplified):

a:
a.recid default sequence_a
a.name

b:
b.recid default sequence_b
b.address
b.city

c:
c.recid default sequence_c
c.arecid
c.brecid

each has a default sequence on their respective recid - which is the primary
index.

when I do an "insert into a ...", it automagically assigns recid a new, unique
value, same goes for b.

But to create c, I need to know the recid from a and b, so I can connect the
two.
Is there any way to get the recid from a and b after they have been inserted
like in "insert into a ... and give me the recid you're going to use, back"?

I know, I can do a "netxval('...')" stuff and then insert the records with
values in recid, but that requires two extra calls to the DB per transaction.

Best regards,
Chris