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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

Question 1

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 NUMBER(4,3); 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 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
/
Which statement will successfully assign .333 to the V_PLAYER_AVG variable from a procedure
outside the package?

A. This variable cannot be assigned a value from outside of the package.
B. BB_PACK.UPD_PLAYER_STAT.V_PLAYER_AVG := .333;
C. BB_PACK.V_PLAYER_AVG := .333;
D. V_PLAYER_AVG := .333;

Question 2

What is true about stored procedures?

A. A stored procedure is named PL/SQL block with at least one parameter declaration in the procedure specification.
B. A stored procedure must have at least one executable statement in the procedure body.
C. A stored procedure uses the DELCLARE keyword in the procedure specification to declare formal parameters.
D. A stored procedure uses the DECLARE keyword in the procedure body to declare formal parameters.

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 fires successfully.
C. The trigger fails because it needs to be a row level AFTER UPDATE trigger.
D. The trigger fails because you cannot use the minimum and maximum functions in a BEFORE UPDATE trigger.

Question 4

When creating stored procedures and functions, which construct allows you to transfer values to and from the calling environment?

A. arguments
B. Boolean variables
C. Substitution variables
D. local variables

Question 5

Which type of argument passes a value from a procedure to the calling environment?

A. VARCHAR2
B. IN
C. OUT
D. BOOLEAN

Solutions: