My First while loop inside PL/SQL block not working , please help

Question

Hi ,
I am new to PL/sql and struck at PL SQL blocks , please help to solve this .
declare
v_A number constant :=10 ;
j number constant := 3 ;
BEGIN
WHILE j < v_A
LOOP
DBMS_OUTPUT.PUT_LINE('Hai');
END LOOP;
END;
please help as how to resolve this .
Thanks in advance .

Answer 1

btw it's a useful habit to use indentation to highlight the block structure. Also it's worth deciding what your convention will be for keywords (I use uppercase, lowercase is also fine as far as I'm concerned but I've set up my editor to uppercase them) and variables, database object names etc (I use lowercase), e.g:
DECLARE
   v_a CONSTANT PLS_INTEGER := 10;
   j   CONSTANT PLS_INTEGER := 3;
   i PLS_INTEGER := j;
BEGIN
   WHILE i <= v_a LOOP
      DBMS_OUTPUT.PUT_LINE(i);
      i := i +1;
   END LOOP;
END;or perhapsdeclare
   v_a constant pls_integer := 10;
   j   constant pls_integer := 3;
   i pls_integer := j;
begin
   while i <= v_a loop
      dbms_output.put_line(i);
      i := i +1;
   end loop;
end;When I see "declare" and "BEGIN" in the same block of code I worry about the standard of code I'm going to see...