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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

Question 1

Which table should you query to determine when your procedure was last compiled?

A. USER_PLSQL_UNITS
B. USER_PROCEDURES
C. USER_OBJECTS
D. USER_PROCS

Question 2

Which code successfully calculates tax?

A. CREATE OR REPLACE FUNCTION calctax (p_no NUMBER) IS
v_sal NUMBER;
tax NUMBER;
BEGIN
SELECT sal INTO v_sal
FROM emp
WHERE empno = p_no;
tax := v_sal * 0.05;
RETURN (tax);
END;
B. CREATE OR REPLACE PROCEDURE calctax (p_no IN NUMBER)
RETURN tax IS
v_sal NUMBER;
tax Number;
BEGIN
SELECT sal INTO v_sal
FROM emp
WHERE empno = p_no;
tax := v_sal * 0.05;
END;
C. CREATE OR REPLACE FUNCTION calctax (p_no NUMBER)
RETURN NUMBER IS
v_sal NUMBER;
tax NUMBER;
BEGIN SELECT sal INTO v_sal FROM emp WHERE empno = p_no; tax := v_sal * 0.05; END
D. CREATE OR REPLACE FUNCTION calctax (p_no NUMBER)
RETURN NUMBER IS
v_sal NUMBER;
BEGIN
SELECT sal INTO v_sal
FROM emp
WHERE empno = p_no;
RETURN (v_sal * 0.05);
END;

Question 3

Examine this code:
CREATE OR REPLACE FUNCTION gen_email_name
(p_first_name VARCHAR2, p_last_name VARCHAR2, p_id NUMBER)
RETURN VARCHAR2
IS
v_email_name VARCHAR2(19=;
BEGIN
v_email_name := SUBSTR(p_first_name, 1, 1) ||
SUBSTR(p_last_name, 1, 7) ||
'@Oracle.com';
UPDATE employees
SET email = v_email_name
WHERE employee_id = p_id;
RETURN v_email_name;
END;
Which statement removes the function?

A. REMOVE gen_email_name;
B. DROP FUNCTION gen_email_name;
C. ALTER FUNCTION gen_email_name REMOVE;
D. TRUNCATE gen_email_name;
E. DELETE gen_email_name;

Question 4

Which three are true statements about dependent objects? (Choose three)

A. You can view whether an object is valid or invalid in the USER_STATUS data dictionary view.
B. An object with status of invalid cannot be a referenced object.
C. All schema objects have a status that is recorded in the data dictionary.
D. You can view whether an object is valid or invalid in the USER_OBJECTS data dictionary view.
E. Invalid objects cannot be described.
F. The Oracle server automatically records dependencies among objects.

Question 5

You have the following table:
CREATE TABLE Emp_log ( Emp_id NUMBER Log_date DATE, New_salary NUMBER, Action VARCHAR(20));
You have the following data in the EMPLOYEES table:
EMPLOYEE_ID LAST_NAME SALARY DEPARTMENT_ID
100 King 24000 90 101 Kochhar 17000 90 102 De Haan 17000 90 103 Hunold 9000 60 104 Ernst 6000 60 105 Austin 4800 60 106 Pataballa 4800 60 107 Lorentz 4200 60 108 Greenberg 12000 100 201 Hartstein 13000 20 202 Fay 6000 20
You create this trigger:
CREATE OR REPLACE TRIGGER Log_salary_increase AFTER UPDATE ON employees FOR EACH ROW WHEN (:new.Salary > 1000) BEGIN INSERT INTO Emp_log (Emp_id, Log_date, New_Salary, Action) VALUES (new.Employee_id, SYSDATE, :new.SALary, 'NEW SAL'); END /
Then, you enter the following SQL statement:
UPDATE Employee SET Salary = Salary + 1000.0 Where Department_id = 20M
What are the result in the EMP_LOG table?
A EMP_ID LOG_DATE NEW_SALARY ACTION
201 24-SEP-02 13000 NEW SAL 202 24-SEP-02 600 NEW SAL

A. EMP_ID LOG_DATE NEW_SALARY ACTION
201 24-SEP-02 14000 NEW SAL 202 24-SEP-02 7000 NEW SAL
B. EMP_ID LOG_DATE NEW_SALARY ACTION
201 24-SEP-02 NEW SAL 202 24-SEP-02 NEW SAL
C. No rows are inserted.

Solutions: