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Oracle9i program with pl/sql Sample Questions:

1. 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 event associated with the trigger.
C) The view associated with the trigger.
D) The package associated with the trigger.
E) The table associated with the trigger.

2. The add_player, upd_player_stat, and upd_pitcher_stat procedures are grouped together in a package. A variable must be shared among only these procedures.
Where should you declare this variable?

A) In a database trigger.
B) In the package body.
C) In the package specification.
D) In each procedure's DECLARE section, using the exact same name in each.

3. Examine this code:
CREATE OR REPLACE FUNCTION gen_email_name
(p_first_name VARCHAR2, p_last_name VARCHAR2, p_id NUMBER)
RETURN VARCHAR2
IS
v_email_name VARCHAR2(19=;
BEGIN
v_email_name := SUBSTR(p_first_name, 1, 1) ||
SUBSTR(p_last_name, 1, 7) ||
'@Oracle.com';
UPDATE employees
SET email = v_email_name
WHERE employee_id = p_id;
RETURN v_email_name;
END;
Which statement removes the function?

A) TRUNCATE gen_email_name;
B) REMOVE gen_email_name;
C) DELETE gen_email_name;
D) ALTER FUNCTION gen_email_name REMOVE;
E) DROP FUNCTION gen_email_name;

4. What is a condition predicate in a DML trigger?

A) A conditional predicate allows you to specify a SHUTDOWN or STARTUP condition in the trigger body.
B) A conditional predicate allows you to specify a WHEN-LOGGING-ON condition in the trigger body.
C) A conditional predicate means you use the NEW and OLD qualifiers in the trigger body as a condition.
D) A conditional predicate allows you to combine several DBM triggering events into one in the trigger body.

5. Under which two circumstances do you design database triggers? (Choose two)

A) For centralized, global operations that should be fired for the triggering statement, regardless of which user or application issues the statement.
B) To replicate built-in constraints in the Oracle server such as primary key and foreign key.
C) To guarantee that when a specific operation is performed, related actions are performed.
D) To duplicate the functionality of other triggers.

Solutions: