Ref Cursors in a stored Procedure

Question

Can some help me with an answer to the below question.
How many ref cursors can be declared in a stored procedure in oracle?
Thanks

Answer 1

user533016 wrote:
You are right. Keeping so many cursors open is not good at all. But i was doing this to see where it breaks and is there something that definitely controls the number of refcursors in allowed a PL/SQL block.As Karthick already mentioned you have the OPEN_CURSORS parameter which defines how many open cursors you may have in any one session.
However, this doesn't just apply to Ref Cursors. If you open explicitly defined cursors then this will also count towards that, as well as issuing select statements as they are implicit cursors... e.g.
declare
  cursor c1 is
    select * from emp;
  cursor c2 is
    select * from dept;
  v_c1 c1%ROWTYPE;
  v_c2 c2%ROWTYPE;
  v_cnt number;
begin
  open c1; -- now we have 1 open cursors
  loop
    fetch c1 into v_c1;
    exit when c1%notfound;
    open c2;  -- now we have 2 open cursors
    loop
      fetch c2 into v_c2;
      exit when c2%notfound;
      select count(*)  -- this counts as opening cursor number 3.
      into v_cnt
      from payroll;
      -- after the select statement the implicit cursor is automatically closed, so now we have 2 open again
    end loop;
    close c2; -- after this we just have 1 more open
  end loop;
  close c1; -- after this we have no open cursors
end;