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Oracle9i program with pl/sql Sample Questions:

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

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

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

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

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

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

4. Examine the code examples. Which one is correct?

A) CREATE OR REPLACE TRIGGER authorize_action BEFORE EMPLOYEES INSERT CALL log_execution;
B) CREATE OR REPLACE TRIGGER authorize_action CALL log_execution BEFORE INSERT ON EMPLOYEES; /
C) CREATE OR REPLACE TRIGGER authorize_action BEFORE EMPLOYEES INSERT CALL log_execution;
D) CREATE OR REPLACE TRIGGER authorize_action BEFORE INSERT ON EMPLOYEES CALL log_execution; /

5. Examine this procedure:
CREATE OR REPLACE PROCEDURE DELETE_PLAYER (V_ID IN NUMBER) IS BEGIN
DELETE FROM PLAYER
WHERE ID = V_ID;
EXCEPTION
WHEN STATS_EXITS_EXCEPTION
THEN DBMS_OUTPUT.PUT_LINE
('Cannot delete this player, child records exist in PLAYER_BAT_STAT table');
END;
What prevents this procedure from being created successfully?

A) The STATS_EXIST_EXCEPTION has not been declared as an exception.
B) A comma has been left after the STATS_EXIST_EXCEPTION exception.
C) Only predefined exceptions are allowed in the EXCEPTION section.
D) The STATS_EXIST_EXCEPTION has not been declared as a number.

Solutions: