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Oracle9i program with pl/sql Sample Questions:

1. Examine this package:
CREATE OR REPLACE PACKAGE BB_PACK
IS
V_MAX_TEAM_SALARY NUMBER(12,2);
PROCEDURE ADD_PLAYER(V_ID IN NUMBER, V_LAST_NAME VARCHAR2,
V_SALARY_NUMBER;
END BB_PACK;
/
CREATE OR REPLACE PACKAGE BODY BB_PACK
IS
PROCEDURE UPD_PLAYER_STAT
(V_ID IN NUMBER, V_AB IN NUMBER DEFAULT 4, V_HITS IN NUMBER)
IS
BEGIN
UPDATE PLAYER_BAT_STAT
SET AT_BATS = AT_BATS + V_AB,
HITS = HITS + V_HITS
WHERE PLAYER_ID = V_ID)
COMMIT;
END UPD_PLAYER_STAT;
PROCEDURE ADD_PLAYER
(V_ID IN NUMBER, V_LAST_NAME VARCHAR2, V_SALARY NUMBER)
IS
BEGIN
INSERT INTO PLAYER(ID,LAST_NAME,SALARY)
VALUES (V_ID, V_LAST_NAME, V_SALARY);
UPD_PLAYER_STAT(V_ID,0.0);
END ADD_PLAYER;
END BB_PACK;
Which statement will successfully assign $75,000,000 to the V_MAX_TEAM_SALARY variable
from within a stand-alone procedure?

A) This variable cannot be assigned a value from outside the package.
B) BB_PACK.ADD_PLAYER.V_MAX_TEAM_SALARY := 75000000;
C) BB_PACK.V_MAX_TEAM_SALARY := 75000000;
D) V_MAX_TEAM_SALARY := 7500000;

2. You disabled all triggers on the EMPLOYEES table to perform a data load. Now, you need to enable all triggers on the EMPLOYEES table. Which command accomplished this?

A) ALTER TRIGGERS ON TABLE employees ENABLE;
B) ALTER TABLE employees ENABLE ALL TRIGGERS;
C) You cannot enable multiple triggers on a table in one command.
D) ALTER employees ENABLE ALL TRIGGERS;

3. Which view displays indirect dependencies, indenting each dependency?

A) INDENT_TREE
B) I_DEPT_TREE
C) IDEPTREE
D) DEPTREE

4. Examine this code:
CREATE OR REPLACE PROCEDURE set_bonus
(p_cutoff IN VARCHAR2 DEFAULT 'WEEKLY'
p_employee_id IN employees_employee_id%TYPE
p_salary IN employees_salary%TYPE,
p_bonus_percent IN OUT NUMBER DEFAULT 1.5,
p_margin OUT NUMBER DEFAULT 2,
p_bonus_value OUT NUMBER)
IS
BEGIN UPDATE emp_bonus SET bonus_amount =(p_salary * p_bonus_percent)/p_margin WHERE employee_id = p_employee_id; END set_bonus; /
You execute the CREATE PROCEDURE statement above and notice that it fails. What are two reasons why it fails? (Choose two)

A) The declaration of the format parameter p_bonus_percent cannot have a DEFAULT clause.
B) The formal parameter p_cutoff cannot have a DEFAULT clause.
C) The format parameter p_bonus_value is declared but is not used anywhere.
D) The syntax of the UPDATE statement is incorrect.
E) The declaration of the format parameter p_margin cannot have a DEFAULT clause.
F) You cannot update a table using a stored procedure.

5. Which statements are true? (Choose all that apply)

A) If errors occur during the compilation of a trigger you can use the SHOW ERRORS command within iSQL *Plus to see the compilation errors.
B) If errors occur during the compilation of a trigger you can go into SQL *Plus and query the USER_ERRORS data dictionary view to see compilation errors.
C) If errors occur during the compilation of a trigger you can go into SQL *Plus and query the USER_TRIGGERS data dictionary view to see the compilation errors.
D) If errors occur during the compilation of a trigger, the trigger is still created.

Solutions: