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Oracle9i program with pl/sql Sample Questions:

1. A dependent procedure or function directly or indirectly references one or more of which four objects? (Choose four)

A) privilege
B) procedure
C) packaged procedure or function
D) sequence
E) anonymous block
F) view

2. Which two does the INSTEAD OF clause in a trigger identify? (Choose two)

A) The statement level or for each row association to the trigger.
B) The view associated with the trigger.
C) The table associated with the trigger.
D) The package associated with the trigger.
E) The event associated with the trigger.

3. Which two statements about packages are true? (Choose two)

A) The contents of packages can be shared by many applications.
B) You can pass parameters to packages.
C) A package is loaded into memory each time it is invoked.
D) You can achieve information hiding by making package constructs private.
E) Packages can be nested.

4. Examine this package:
CREATE OR REPLACE PACKAGE discounts
IS
g_id NUMBER := 7829;
discount_rate NUMBER := 0.00;
PROCEDURE display_price (p_price NUMBER);
END discounts;
/
CREATE OR REPLACE PACKAGE BODY discounts
IS
PROCEDURE display_price (p_price NUMBER)
IS
BEGIN
DBMS_OUTPUT.PUT_LINE('Discounted '||
TO_CHAR(p_price*NVL(discount_rate, 1)));
END display_price;
BEGIN
discount_rate := 0.10;
END discounts;
/
Which statement is true?

A) The value of DISCOUNT_RATE always remains 0.00 in a session.
B) The value of DISCOUNT_RATE is set to 1.00 each time the procedure DISPLAY_PRICE is invoked.
C) The value of DISCOUNT_RATE is set to 0.10 when the package is invoked for the first time in a session.
D) The value of DISCOUNT_RATE is set to 0.10 each time the package is invoked in a session.

5. You need to disable all triggers on the EMPLOYEES table.Which command accomplishes this?

A) None of these commands; you cannot disable multiple triggers on a table in one command.
B) ALTER TRIGGERS ON TABLE employees DISABLE;
C) ALTER employees DISABLE ALL TRIGGERS;
D) ALTER TABLE employees DISABLE ALL TRIGGERS;

Solutions: