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Oracle9i program with pl/sql Sample Questions:

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

2. Examine this package specification:
CREATE OR REPLACE PACKAGE concat_all
IS
v_string VARCHAR2(100);
PROCEDURE combine (p_num_val NUMBER);
PROCEDURE combine (p_date_val DATE);
PROCEDURE combine (p_char_val VARCHAR2, p_num_val NUMBER);
END concat_all; /
Which overloaded COMBINE procedure declaration can be added to this package specification?

A) PROCEDURE combine (p_val_1 VARCHAR2, p_val_2 NUMBER;
B) PROCEDURE combine (p_no NUMBER);
C) PROCEDURE concat_all
(p_num_val VARCHAR2, p_char_val NUMBER);
D) PROCEDURE combine;

3. Which type of argument passes a value from a procedure to the calling environment?

A) BOOLEAN
B) OUT
C) IN
D) VARCHAR2

4. Consider this scenario
A procedure X references a view Y that is based on a table Z .
Which two statements are true? (Choose two.)

A) Z is an indirect dependent of Y
B) Y is a referenced object
C) Y is an indirect dependent of Z
D) Z is a direct dependent of X
E) Y is an indirect dependent of X
F) Y is a direct dependent of X

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

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

Solutions: