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Oracle9i program with pl/sql Sample Questions:

1. 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) INSTEAD OF trigger
B) Application trigger
C) System event trigger
D) DML trigger

2. Examine this package: CREATE OR REPLACE PACKAGE BB_PACK IS V_MAX_TEAM_SALARY NUMBER ( 12,2) ; PROCEDURE ADD_PLAYER (V_ID IN NUMBER, V_LAST_NAME VARCHAR2, V_SALARY NUMBER); END BB_PACK; / CREATE OR REPLACE PACKAGE BODY BB_PACK
IS
V_PLAYER_AVG NUMBER84,3);
PROCEDURE UPD_PLAYER_STAT
(V_ID IN NUMBER, V_AB IN NUMBER DEFAULT 4, V_HITS IN NUMBER)
IS
BEGIN
UPDATE PLAYER_BAT_STAT
SET AT_BATS = AT_BATS + V_AB,
HITS = HITS + V_HITS
WHERE PLAYER_ID = V_ID;
COMMIT;
VALIDATE_PLAYER_STAT(V_ID);
END UPD_PLAYER_STAT;
PROCEDURE ADD_PLAYER
(V_ID IN NUMBER, V_LAST_NAME VARCHAR2, V_SALARY NUMBERI)
IS
BEGIN
INSERT INTO PLAYER (ID,LAST_NAME, SALARY)
VALUES (V_ID, V_LAST_NAME, V_SALARY);
UPD _PLAYER_STAT (V_ID, 0, 0) ;
END ADD_PLAYER;
END BB_PACK;
If you add an IF statement to the ADD_PLAYER procedure which additional step must you
perform?
r A Recompile the ADD PLAYER procedure
Recompile both the BB PACK specification and body

A) Recompile the BB_PACK specification
B) Recompile the ADD_PLAYER procedure
C) Recompile both the BB_PACK specification and body
D) Recompile the BB_PACK body

3. Which two statements describe the state of a package variable after executing the package in which it is declared? (Choose two)

A) It does not persist from session to session for the same user.
B) It persists across transactions within a session.
C) It does not persist across transaction within a session.
D) It persists from session to session for the same user.
E) It persists from user to user when the package is invoked.

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

5. Examine this procedure:
CREATE OR REPLACE PROCEDURE INSERT_TEAM
(V_ID in NUMBER, V_CITY in VARCHAR2 DEFAULT 'AUSTIN', V_NAME in VARCHAR2)
IS
BEGIN
INSERT INTO TEAM (id, city, name)
VALUES (v_id, v_city, v_name);
COMMIT;
END
Which two statements will successfully invoke this procedure in SQL *Plus? (Choose two)

A) EXECUTE INSERT_TEAM;
B) EXECUTE INSERT_TEAM (V_ID := V_NAME := 'LONGHORNS', V_CITY := 'AUSTIN');
C) EXECUTE INSERT_TEAM (3, 'LONGHORNS');
D) EXECUTE INSERT_TEAM(3, V_NAME=>'LONGHORNS', V_CITY=>'AUSTIN');
E) EXECUTE INSERT_TEAM(3, 'AUSTIN','LONGHORNS');

Solutions: