function calls in select statement

How can I use PL/SQLfunction calls within select statements, e.g.:

select v1, v2, fktn1(v3,v4)
from t1
where v7 = fktn2(v4,v5);

Is this possible at all?

Thanks in advance

Meinolf Received on Thu Feb 13 1997 - 00:00:00 CST