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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

1. Which two statements describe the state of a package variable after executing the package in which it is declared? (Choose two)

A) It persists from user to user when the package is invoked.
B) It persists from session to session for the same user.
C) It does not persist across transaction within a session.
D) It does not persist from session to session for the same user.
E) It persists across transactions within a session.

2. You disabled all triggers on the EMPLOYEES table to perform a data load. Now, you need to enable all triggers on the EMPLOYEES table. Which command accomplished this?

A) You cannot enable multiple triggers on a table in one command.
B) ALTER TRIGGERS ON TABLE employees ENABLE;
C) ALTER TABLE employees ENABLE ALL TRIGGERS;
D) ALTER employees ENABLE ALL TRIGGERS;

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

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

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

5. You need to implement a virtual private database (vpd). In order to have the vpd functionality, a trigger is required to fire when every user initiates a session in the database.What type of trigger needs to be created?

A) System event trigger
B) INSTEAD OF trigger
C) DML trigger
D) Application trigger

Solutions: