LOOP REVERSE EXIT

Question

Next code...
     GO_BLOCK('BLOCK');
     LAST_RECORD;
     LOOP
       /*something*/
     EXIT WHEN ..................;
          PREVIOUS_RECORD;
     END LOOP;   What condition for exit when is first record???

Answer 1

Hi jortri,
We normally use system.last record as exit condition, when we traverse the loop in forward way.
But, system.first_record is not a defined variable so i suggest you to modified your code as follows:
declare
REC_NUM NUMBER;
begin
       GO_BLOCK('BLOCK');
     LAST_RECORD;
     LOOP
                /*something*/
              REC_NUM := get_block_property('<block_name>',CURRENT_RECORD);
                IF REC_NUM = 1 then
                       exit;
               else
                 PREVIOUS_RECORD;
     END LOOP;
end;Hope it helps.
Please mark answer as helpful / correct, if it helps you
Navnit