Oracle 9i Internet Application Developer 1Z0-147

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Oracle9i program with pl/sql Sample Questions:

1. Examine the code examples. Which one is correct?

A) CREATE OR REPLACE TRIGGER authorize_action CALL log_execution BEFORE INSERT ON EMPLOYEES; /
B) CREATE OR REPLACE TRIGGER authorize_action BEFORE EMPLOYEES INSERT CALL log_execution;
C) CREATE OR REPLACE TRIGGER authorize_action BEFORE INSERT ON EMPLOYEES CALL log_execution; /
D) CREATE OR REPLACE TRIGGER authorize_action BEFORE EMPLOYEES INSERT CALL log_execution;

2. Examine this package:
CREATE OR REPLACE PACKAGE manage_emps IS tax_rate CONSTANT NUMBER(5,2) := .28; v_id NUMBER; PROCEDURE insert_emp (p_deptno NUMBER, p_sal NUMBER); PROCEDURE delete_emp; PROCEDURE update_emp; FUNCTION calc_tax (p_sal NUMBER) RETURN NUMBER; END manage_emps; / CREATE OR REPLACE PACKAGE BODY manage_emps IS PROCEDURE update_sal (p_raise_amt NUMBER) IS BEGIN UPDATE emp SET sal = (sal * p_raise_emt) + sal WHERE empno = v_id; END; PROCEDURE insert_emp (p_deptno NUMBER, p_sal NUMBER) IS BEGIN INSERT INTO emp(empno, deptno, sal) VALYES(v_id, p_depntno, p_sal); END insert_emp; PROCEDURE delete_emp IS BEGIN DELETE FROM emp WHERE empno = v_id; END delete_emp; PROCEDURE update_emp IS v_sal NUMBER(10, 2); v_raise NUMBER(10, 2); BEGIN SELECT sal INTO v_sal FROM emp WHERE empno = v_id;
IF v_sal < 500 THEN
v_raise := .05;
ELSIP v_sal < 1000 THEN
v_raise := .07;
ELSE
v_raise := .04;
END IF;
update_sal(v_raise);
END update_emp;
FUNCTION calc_tax
(p_sal NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_sal * tax_rate;
END calc_tax;
END manage_emps;
/
What is the name of the private procedure in this package?

A) MANAGE_EMPS
B) CALC_TAX
C) INSERT_EMP
D) UPDATE_EMP
E) DELETE_EMP
F) UPDATE_SAL

3. Examine this code CREATE OR REPLACE FUNCTION change_dept (p_old_id NUMBER, p_deptname VARCHAR2) RETURN NUMBER IS V_new_id NUMBER; BEGIN SELECT departments_seq.nextval INTO v_new_id FROM dual; UPDATE departments SET departmenet_id = v_new_id, Department_name = p_deptname WHERE department_id = p_old_id; Return v_new_id; END; /
There are no foreign key integrity constraints on the EMPLOYEES and DEPARTMENTS tables. Which statement performs a successful update to the EMPLOYEES table?

A) UPDATE employees
SET department_id = change_dept(10, 'Finance')
Where department_id = DEPARTMENTS:CURRVAL;
B) UPDATE employees
SET department_id = change_dept(10, 'Finance')
Where department_id = 10;
C) UPDATE departments
SET department_id = change_dept(10, 'Finance')
Where department_id = 10;
D) UPDATE departments
change_dept(270, 'Outsource')
Where department_name = 'payroll';

4. Which statement is true about removing packages?

A) You must remove both the package body and the specification separately
B) Removing the package body removes the specification too
C) Removing a package specification removes the body too
D) Removing a package specification removes all stand alone stored functions named in the specification
E) You must remove the package body first

5. You want to create a PL/SQL block of code that calculates discounts on customer orders. -This code will be invoked from several places, but only within the program unit ORDERTOTAL. What is the most appropriate location to store the code that calculates the discounts?

A) A local subprogram defined within the program unit ORDERTOTAL.
B) A block of code in a PL/SQL library.
C) A block of code in the body of the program unit ORDERTOTAL.
D) A standalone procedure on the client machine.
E) A stored procedure on the server.

Solutions:

Question # 1 Answer: C

Question # 2 Answer: F

Question # 3 Answer: B

Question # 4 Answer: C

Question # 5 Answer: A