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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

1. 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) INSTEAD OF trigger
C) This is an invalid trigger.
D) Application trigger
E) System event trigger

2. Examine this code:
CREATE OR REPLACE PROCEDURE set_bonus
(p_cutoff IN VARCHAR2 DEFAULT 'WEEKLY'
p_employee_id IN employees_employee_id%TYPE
p_salary IN employees_salary%TYPE,
p_bonus_percent IN OUT NUMBER DEFAULT 1.5,
p_margin OUT NUMBER DEFAULT 2,
p_bonus_value OUT NUMBER)
IS
BEGIN UPDATE emp_bonus SET bonus_amount =(p_salary * p_bonus_percent)/p_margin WHERE employee_id = p_employee_id; END set_bonus; /
You execute the CREATE PROCEDURE statement above and notice that it fails. What are two reasons why it fails? (Choose two)

A) The syntax of the UPDATE statement is incorrect.
B) The format parameter p_bonus_value is declared but is not used anywhere.
C) The formal parameter p_cutoff cannot have a DEFAULT clause.
D) The declaration of the format parameter p_margin cannot have a DEFAULT clause.
E) You cannot update a table using a stored procedure.
F) The declaration of the format parameter p_bonus_percent cannot have a DEFAULT clause.

3. Which view displays indirect dependencies, indenting each dependency?

A) I_DEPT_TREE
B) INDENT_TREE
C) DEPTREE
D) IDEPTREE

4. You have a row level BEFORE UPDATE trigger on the EMP table. This trigger contains a SELECT statement on the EMP table to ensure that the new salary value falls within the minimum and maximum salary for a given job title.
What happens when you try to update a salary value in the EMP table?

A) The trigger fires successfully.
B) The trigger fails because a SELECT statement on the table being updated is not allowed.
C) The trigger fails because it needs to be a row level AFTER UPDATE trigger.
D) The trigger fails because you cannot use the minimum and maximum functions in a BEFORE UPDATE trigger.

5. Why do you use an INSTEAD OF trigger?

A) To insert into an audit table when data is updated in a sensitive column.
B) To modify data in which the DML statement has been issued against an inherently nonupdateable view.
C) To perform clean up actions when ending a user session.
D) To insert data into a view that normally does not accept inserts.

Solutions: