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

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

3. You create a DML trigger. For the timing information, which is valid with a DML trigger?

A) ON STATEMENT EXECUTION
B) INSTEAD
C) DURING
D) ON SHUTDOWN
E) BEFORE

4. The add_player procedure inserts rows into the PLAYER table. Which command will show this directory dependency?

A) SELECT * FROM USER_DEPENDENCIES WHERE REFERENCED_NAME = 'PLAYER';
B) SELECT * FROM USER DEPENDENCIES WHERE REFERENCED_NAME = 'ADD_PLAYER';
C) SELECT * FROM USER_DEPENDENCIES WHERE TYPE = 'DIR';
D) SELECT * FROM USER DEPENDENCIES WHERE REFERENCED_NAME = 'TABLE';

5. Which four triggering events can cause a trigger to fire? (Choose four)

A) A specific error or any errors occurs.
B) A user executes a JOIN statement that uses four or more tables.
C) A specific user or any user logs on or off.
D) A user executes a CREATE or an ALTER table statement.
E) A user executes a SELECT statement with an ORDER BY clause.
F) A database is shut down or started up.

Solutions: