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Oracle9i program with pl/sql Sample Questions:

1. An internal LOB is _____.

A) A table.
B) A file stored outside of the database, with an internal pointer to it from a database column.
C) A column that is a primary key.
D) Stored in the database.

2. Examine this code:
CREATE OR REPLACE PROCEDURE insert_dept
(p_location_id NUMBER)
IS
v_dept_id NUMBER(4);
BEGIN
INSERT INTO departments
VALUES (5, 'Education', 150, p_location_id);
SELECT department_id
INTO v_dept_id
FROM employees
WHERE employee_id=99999;
END insert_dept;
/
CREATE OR REPLACE PROCEDURE insert_location
( p_location_id NUMBER,
p_city VARCHAR2)
IS
BEGIN
INSERT INTO locations(location_id, city)
VALUES (p_location_id, p_city);
insert_dept(p_location_id);
END insert_location;
/
You just created the departments, the locations, and the employees table. You did not insert any
rows. Next you created both procedures.
You new invoke the insert_location procedure using the following command:
EXECUTE insert_location (19, 'San Francisco')
What is the result in thisEXECUTE command?

A) The location table has one row.
The departments and the employees tables are empty.
B) The departments table has one row.
The locations and the employees tables are empty.
C) The locations, departments, and employees tables are empty.
D) The locations table and the departments table both have one row. The employees table is empty.

3. Which two statements about functions are true? (Choose two.)

A) From SOL*Plus, a function can be executed by giving the command EXECUTE functionname;
B) A function must have a return statement in its body to execute successfully
C) A stored function increases efficiency of queries by performing functions on the server rather than in the application
D) Client-side functions can be used in SOL statements
E) A stored function that is called from a SOL statement can return a value of any PL/SOL variable data type

4. Examine this code:
CREATE OR REPLACE TRIGGER secure_emp BEFORE LOGON ON employees BEGIN IF (TO_CHAR(SYSDATE, 'DY') IN ('SAT', 'SUN')) OR (TO_CHAR(SYSDATE, 'HH24:MI') NOT BETWEEN '08:00' AND '18:00') THEN RAISE_APPLICATION_ERROR (-20500, 'You may insert into the EMPLOYEES table only during business hours.'); END IF; END; / What type of trigger is it?

A) System event trigger
B) This is an invalid trigger.
C) DML trigger
D) Application trigger
E) INSTEAD OF trigger

5. 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.

Solutions: