Oracle / PLSQL: IF-THEN-ELSE-IF-ELSE Statement

SET SERVEROUTPUT ON;

DECLARE
   a number(3) := 100;
BEGIN
   IF (a = 50 ) THEN
      dbms_output.put_line('Value of a is 80' );
   ELSIF ( a = 75 ) then
      dbms_output.put_line('Value of a is 76' );
   ELSE
       dbms_output.put_line('None of the values is matching');
   END IF;
   dbms_output.put_line('Real value of a is: '|| a );
END;

/

PL/SQL Basic Loop Statement

SET SERVEROUTPUT ON ;

DECLARE
   x number := 4;
BEGIN
   LOOP
      dbms_output.put_line(x);
      x := x + 1;
      exit WHEN x > 5;
   END LOOP;
      dbms_output.put_line(x);
END;

/