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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

Question 1

Examine this code:
CREATE OR REPLACE PROCEDURE add_dept
( p_name departments.department_name%TYPE DEFAULT 'unknown',
p_loc departments.location_id%TYPE DEFAULT 1700)
IS
BEGIN
INSERT INTO departments(department_id, department_name,
loclation_id)
VALUES(dept_seq.NEXTVAL,p_name, p_loc);
END add_dept;
/
You created the add_dept procedure above, and you now invoke the procedure in SQL *Plus.
Which four are valid invocations? (Choose four)

A. EXECUTE add_dept(p_loc=>2500, p_name=>'Education')
B. EXECUTE add_dept('2500', p_loc =>2500)
C. EXECUTE add_dept(p_name=>'Education', 2500)
D. EXECUTE add_dept('Education', 2500)
E. EXECUTE add_dept(p_loc=>2500)

Question 2

What is a condition predicate in a DML trigger?

A. A conditional predicate means you use the NEW and OLD qualifiers in the trigger body as a condition.
B. A conditional predicate allows you to combine several DBM triggering events into one in the trigger body.
C. A conditional predicate allows you to specify a WHEN-LOGGING-ON condition in the trigger body.
D. A conditional predicate allows you to specify a SHUTDOWN or STARTUP condition in the trigger body.

Question 3

You have a row level BEFORE UPDATE trigger on the EMP table. This trigger contains a SELECT statement on the EMP table to ensure that the new salary value falls within the minimum and maximum salary for a given job title.
What happens when you try to update a salary value in the EMP table?

A. The trigger fails because a SELECT statement on the table being updated is not allowed.
B. The trigger fails because it needs to be a row level AFTER UPDATE trigger.
C. The trigger fails because you cannot use the minimum and maximum functions in a BEFORE UPDATE trigger.
D. The trigger fires successfully.

Question 4

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. A comma has been left after the STATS_EXIST_EXCEPTION exception.
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. Only predefined exceptions are allowed in the EXCEPTION section.

Question 5

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
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;
END UPD_PLAYER_STAT;
PROCEDURE ADD_PLAYER
(V_ID IN NUMBER, V_LAST_NAME VARCHAR2, V_SALARY NUMBER)
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;
You make a change to the body of the BB_PACK package. The BB_PACK body is recompiled.
What happens if the stand alone procedure VALIDATE_PLAYER_STAT references this package?

A. VALDIATE_PLAYER_STAT is invalidated.
B. VALIDATE_PLAYER_STAT is not invalidated.
C. VALIDATE_PLAYER_STAT cannot recompile and must be recreated.
D. VALIDATE_PLAYER_STAT and BB_PACK are invalidated.

Solutions: