Help needed in building a function

Question

Hello,
I am using Oracle DB 11g.
I am writing a function.
create or replace function func(tab VARCHAR2) RETURN VARCHAR2 AS
cursor c is SELECT column_name
FROM all_tab_columns
WHERE table_name =tab;
begin
//some statements
for i in c loop
flag=1;
//some statements
end loop;
//use the same c cursor query
if flag!=1 then
//repeat the block inside the for loop;
end if;
end;
Function works fine.
Now once the for loop ends,what i want is if it doesn't enter the for loop, then for just for once enter the if condition for
any column from the table and repeat the process, which i am doing inside the for loop.
But here i am finding repetition of same query and the block of code.
Is there any way i can avoid that?
Thanks

Answer 1

How about you start from scratch and explain the business problem you are attempting to solve. Not a portion of a technical implementation that doesn't seem to make any sense.
Start from the beginning, no code ... just "i have a situation where i need to .... ".
Should be a lot more productive.