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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

Question 1

Which two statements are true about LOBs? (Choose two.)

A. All LOBs have read and write access
B. BFILES are stored in the database
C. NCLOB represents a multi-byte character object
D. The Oracle9i server performs implicit conversions between CLOBs and VARCHAR2 data types
E. The Oracle9i server performs implicit conversions between BLOBs and NUMBER data types

Question 2

You create a DML trigger. For the timing information, which is valid with a DML trigger?

A. BEFORE
B. ON SHUTDOWN
C. DURING
D. INSTEAD
E. ON STATEMENT EXECUTION

Question 3

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

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

Question 5

Examine this package
CREATE OR REPLACE PACKAGE discounts
IS
g_id NUMBER := 7839;
discount _rate NUMBER := 0.00;
PROCEDURE display_price (p_price NUMBER);
END discounts;
/
CREATE OR REPLACE PACKAGE BODY discounts
IS
PROCEDURE display_price (p_price NUMBERI)
IS
BEGIN
DBMS_OUTPUT.PUT LINE ( 'Discounted '||
TO_CHAR(p_price*NVL(dlscount_rate, 1)));
END display_price;
BEGIN
Discount_rate = 0.10;
END discounts;
/
The SQL*Plus SERVEROUTPUT setting is turned on in your session. You execute the procedure
DISPLAY_PRICE from SQL*Plus with the command EXECUTE discounts. display_price (100);
What is the result?

A. Discounted 100
B. Discounted 10
C. Discounted NULL
D. Discounted 0.00
E. Discounted 0.10

Solutions: