Need a test for fetch into from a cursor or an alternative.

Question

I've got a small oddity.
Ultimately it's two cursors that are exactly the same except a part of the WHERE clause. Depending on how many records I am going through (based on a counter) I need to use one cursor or the other as the outer loop, to then process an inner loop.
My problem is I don't quite know how to exit out of the current loop when the fetch reaches the end of the cursor. Meaning, in each of these loops, there's an IF THEN to see which cursor I'm using, and then fetch from the correct one. If I use a FOR X IN CURSOR loop, I'll have to double up the code, one for each outer cursor loop.
What's the test in Oracle for no record found or when it hits the end of a cursor with a fetch? Or am I stuck and I can only use the exception block when the fetch fails?
Thansk!

Answer 1

You can check whether your fetch returned any data with %notfound.
DECLARE
  l_cur   sys_refcursor;
  l_var   VARCHAR2 (30);
BEGIN
  IF TO_CHAR (SYSDATE, 'Day') = 'Monday'
  THEN
    OPEN l_cur FOR
      SELECT dummy
        FROM DUAL;
  ELSE
    OPEN l_cur FOR
      SELECT dummy
        FROM DUAL
       WHERE 1 = 2;
  END IF;
  LOOP
    FETCH l_cur
     INTO l_var;
    EXIT WHEN l_cur%NOTFOUND;
    DBMS_OUTPUT.put_line (l_var);
  END LOOP;
END;
/