How to iterate over a date range in PL/SQL

Question

I need to write a report that generates summary totals against a table with date ranges for each record.

table data:
option   start_date   end_date
opt1              


        

Answer 1

Using while loop (better)

declare
 dfrom date;
 dtill date;
 day date;
begin
    dfrom := TO_DATE('09.09.1988', 'dd.mm.yyyy');
    dtill := TO_DATE('19.09.1988', 'dd.mm.yyyy');
    day := dfrom;

WHILE day <= dtill
LOOP
   DBMS_OUTPUT.PUT_LINE(day);
   day := day + 1;
END LOOP;
    
end;
/

//using cursor
declare
 dfrom date;
 dtill date;
begin
    dfrom := TO_DATE('09.09.1988', 'dd.mm.yyyy');
    dtill := TO_DATE('19.09.1988', 'dd.mm.yyyy');
FOR cur IN (
      SELECT dfrom + LEVEL - 1 AS today
        FROM dual
        CONNECT BY LEVEL <= dtill - dfrom + 1
    ) LOOP
    DBMS_OUTPUT.PUT_LINE(cur.today);
    END LOOP;
    
end;
/