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Oracle9i program with pl/sql Sample Questions:

1. Which two statements about object dependencies are accurate? (Choose two.)

A) When referencing a package procedure or function from a stand-alone procedure or function, if the package specification changes, the package body remains valid but the stand-alone procedure becomes invalid
B) When referencing a package procedure or function from a stand-alone procedure or function, If the package specification changes, the stand-alone procedure referencing a package construct as well as the package body become invalid
C) When referencing a package procedure or function from a stand-alone procedure or function, if the package body changes and the package specification does not change, the stand-alone procedure referencing a package construct becomes invalid
D) When referencing a package procedure or function from a stand-alone procedure or function, if the package body changes and the package specification does not change, the stand-alone procedure referencing a package construct remains valid.

2. You need to implement a virtual private database (vpd). In order to have the vpd functionality, a trigger is required to fire when every user initiates a session in the database.What type of trigger needs to be created?

A) Application trigger
B) INSTEAD OF trigger
C) System event trigger
D) DML trigger

3. Examine this procedure:
CREATE OR REPLACE PROCEDURE DELETE_PLAYER (V_ID IN NUMBER) IS BEGIN
DELETE FROM PLAYER
WHERE ID = V_ID;
EXCEPTION
WHEN STATS_EXITS_EXCEPTION
THEN DBMS_OUTPUT.PUT_LINE
('Cannot delete this player, child records exist in PLAYER_BAT_STAT table');
END;
What prevents this procedure from being created successfully?

A) Only predefined exceptions are allowed in the EXCEPTION section.
B) The STATS_EXIST_EXCEPTION has not been declared as an exception.
C) The STATS_EXIST_EXCEPTION has not been declared as a number.
D) A comma has been left after the STATS_EXIST_EXCEPTION exception.

4. Examine this code:
CREATE OR REPLACE FUNCTION calc_sal(p_salary NUMBER)
RETURN NUMBER
IS
v_raise NUMBER(4,2) DEFAULT 1.08;
BEGIN
RETURN v_raise * p_salary;
END calc_sal;
/
Which statement accurately call the stored function CALC_SAL? (Choose two)

A) SELECT last_name, salary, calc_sal(salary)
FROM employees ORDER BY
calc_sal(salary);
B) DELETE FROM employees(calc_sal(salary))
WHERE calc_sal(salary) > 1000;
C) SELECT salary, calc_sal(salary)
FROM employees
WHERE department_id = 60;
D) INSERT calc_sal(salary) INTO employees
WHERE department_id = 60;
E) UPDATE employees (calc_sal(salary))
SET salary = salary * calc_sal(salary);

5. Which two statements about the overloading feature of packages are true? (Choose two)

A) Overloading allows different functions with the same name that differ only in their return types.
B) Overloading allows different subprograms with the same number, type and order of parameters.
C) Only local or packaged subprograms can be overloaded.
D) Overloading allows different subprograms with the same name, but different in either number, type or order of parameters.
E) Overloading allows different subprograms with the same name and same number or type of parameters.

Solutions: