Oracle:for Loop Statement Practice

--Printing output positive integers from 1 to 10
DECLARE
V_i Number (10): = 0;
BEGIN
LOOP
V_i: = v_i + 1;
Dbms_output.put_line (v_i);
EXIT when v_i=10; --or v_i>9;
END LOOP;
END;

--an even number of printouts from 1 to 10
DECLARE
V_i Number (10): = 0;
BEGIN
LOOP
V_i: = v_i + 1;
IF v_i MOD 2 = 0 Then
Dbms_output.put_line (v_i);
END IF;
EXIT when v_i=10;
END LOOP;
END;

--The sum of the positive integers from 1 to 100 of the printout.
--The first method
DECLARE
V_i Number (10): = 0;
V_sum Number (10): = 0;
BEGIN
LOOP
V_i: = v_i + 1;
V_sum: = V_sum + v_i;
EXIT when v_i=100;
END LOOP;
Dbms_output.put_line (v_sum);
END;
--The second method
DECLARE
V_sum Number (10): = 0;
BEGIN
For v_i in 1..100 LOOP
V_sum: = V_sum + v_i;
END LOOP;
Dbms_output.put_line (v_sum);
END;

--Printing output positive integers from 1 to 10
--The first method
DECLARE
V_i Number (10): = 0;
BEGIN
For v_i in 1..10 LOOP
Dbms_output.put_line (v_i);
END LOOP;
END;
--The second method
DECLARE
V_i Number (10): = 0;
BEGIN
For v_i in REVERSE 1..10 LOOP--Reverse
Dbms_output.put_line (v_i);
END LOOP;
END;

Oracle:for Loop Statement Practice