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Oracle9i program with pl/sql Sample Questions:

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

2. To be callable from a SQL expression, a user-defined function must do what?

A) Be stored only in the database.
B) Return a BOOLEAN or VARCHAR2 data type.
C) Have both IN and OUT parameters.
D) Use the positional notation for parameters.

3. Examine this procedure:
CREATE OR REPLACE PROCEDURE INSERT_TEAM
(V_ID in NUMBER, V_CITY in VARCHAR2 DEFAULT 'AUSTIN', V_NAME in VARCHAR2)
IS
BEGIN
INSERT INTO TEAM (id, city, name)
VALUES (v_id, v_city, v_name);
COMMIT;
END
Which two statements will successfully invoke this procedure in SQL *Plus? (Choose two)

A) EXECUTE INSERT_TEAM(3, 'AUSTIN','LONGHORNS');
B) EXECUTE INSERT_TEAM;
C) EXECUTE INSERT_TEAM(3, V_NAME=>'LONGHORNS', V_CITY=>'AUSTIN');
D) EXECUTE INSERT_TEAM (3, 'LONGHORNS');
E) EXECUTE INSERT_TEAM (V_ID := V_NAME := 'LONGHORNS', V_CITY := 'AUSTIN');

4. The OLD and NEW qualifiers can be used in which type of trigger?

A) Row level application trigger
B) Statement level DML trigger
C) Row level system trigger
D) Statement level application trigger
E) Statement level system trigger
F) Row level DML trigger

5. When using a PL/SQL stored package, how is a side effect defined?

A) changes only to packaged public variables defined in a package body
B) changes only to database tables
C) changes to database tables or packaged variables defined in a package specification
D) changes to database tables or packaged public variables defined in a package body
E) changes only to packaged public variables defined in a package specification

Solutions: