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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

1. 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;
/
How many public procedures are in the MANAGE_EMPS package?

A) Four
B) Five
C) Two
D) Three
E) One

2. Examine this code:
CREATE OR REPLACE PROCEDURE audit_emp
(p_id IN emp_empno%TYPE)
IS
v_id NUMBER;
PROCEDURE log_exec
IS
BEGIN
INSERT INTO log_table (user_id, log_delete)
VALUES (USER, SYSDATE);
END log_exec;
v_name VARCHAR2(20);
BEGIN
DELETE FROM emp
WHERE empno = p_id;
log_exec;
SELECT ename, empno
INTO v_name, v_id
FROM emp
WHERE empno = p_id;
END audit_emp;
Why does this code cause an error when compiled?

A) Variable v_name should be declared before declaring the LOG_EXEC procedure.
B) An insert statement is not allowed in a subprogram declaration.
C) Procedure LOG_EXEC should be declared before any identifiers.
D) The LOG_EXEC procedure should be invoked as EXECUTE log_exec with the AUDIT_EMP procedure.

3. Examine this code:
CREATE OR REPLACE FUNCTION calc_sal(p_salary NUMBER)
RETURN NUMBER
IS
v_raise NUMBER(4,2) DEFAULT 1.08;
BEGIN
RETURN v_raise * p_salary;
END calc_sal;
/
Which statement accurately call the stored function CALC_SAL? (Choose two)

A) SELECT salary, calc_sal(salary)
FROM employees
WHERE department_id = 60;
B) INSERT calc_sal(salary) INTO employees
WHERE department_id = 60;
C) SELECT last_name, salary, calc_sal(salary)
FROM employees ORDER BY
calc_sal(salary);
D) DELETE FROM employees(calc_sal(salary))
WHERE calc_sal(salary) > 1000;
E) UPDATE employees (calc_sal(salary))
SET salary = salary * calc_sal(salary);

4. Examine this code:
CREATE OR REPLACE PACKAGE metric_converter
IS
c_height CONSTRAINT NUMBER := 2.54;
c_weight CONSTRAINT NUMBER := .454;
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER;
END;
/
CREATE OR REPLACE PACKAGE BODY metric_converter
IS
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * c_height;
END calc_height;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_weight_in_pounds * c_weight
END calc_weight
END metric_converter;
/
CREATE OR REPLACE FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * metric_converter.c_height;
END calc_height;
/
Which statement is true?

A) If you remove the package specification, then the package body is removed.
B) If you remove the package specification, then the package body and the stand alone stored function CALC_HEIGHT are removed.
C) If you remove the stand alone stored function CALC_HEIGHT, then the METRIC_CONVERTER package body and the package specification are removed.
D) If you remove the package body, then the package specification and the stand alone stored function CALC_HEIGHT are removed.
E) If you remove the package body, then the package specification is removed.
F) The stand alone function CALC_HEIGHT cannot be created because its name is used in a packaged function.

5. Which two dictionary views track dependencies? (Choose two)

A) UTL_DEPTREE
B) DEPTREE_TEMPTAB
C) USER_OBJECTS
D) USER_DEPENDENCIES
E) USER_SOURCE
F) DBA_DEPENDENT_OBJECTS

Solutions: