Basically i want to do this in a stored procedure

if (X=0) then
for select a from b into :c
else
for select a from b where z = :x into c

do
begin

process all the returned results in the same way irrespective of which
select for statement was used.

suspend;
end;


Is this possible?
If so, how would I code the for select statements?

Using FB 1.5