Example 4-2 Using a Simple IF-THEN-ELSE Statement

DECLARE
  sales  NUMBER(8,2) := 12100;
  quota  NUMBER(8,2) := 10000;
  bonus  NUMBER(6,2);
  emp_id NUMBER(6) := 120;
BEGIN
  IF sales > (quota + 200) THEN
     bonus := (sales - quota)/4;
  ELSE
     bonus := 50;
  END IF;
  UPDATE employees SET salary = salary + bonus WHERE employee_id = emp_id;
END;
/