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Oracle9i program with pl/sql Sample Questions:

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

2. 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.

3. You are about to change the arguments of the CALC_TEAM_AVG function.
Which dictionary view can you query to determine the names of the procedures and functions that
invoke the CALC_TEAM_AVG function?

A) USER_DEPENDENCIES
B) USER_REFERENCES
C) USER_SOURCE
D) USER_PROC_DEPENDS

4. Which two statements about object dependencies are accurate? (Choose two.)

A) When referencing a package procedure or function from a stand-alone procedure or function, if the package specification changes, the package body remains valid but the stand-alone procedure becomes invalid
B) When referencing a package procedure or function from a stand-alone procedure or function, if the package body changes and the package specification does not change, the stand-alone procedure referencing a package construct becomes invalid
C) When referencing a package procedure or function from a stand-alone procedure or function, If the package specification changes, the stand-alone procedure referencing a package construct as well as the package body become invalid
D) When referencing a package procedure or function from a stand-alone procedure or function, if the package body changes and the package specification does not change, the stand-alone procedure referencing a package construct remains valid.

5. Which three statements are true regarding database triggers? (Choose three)

A) A database trigger is a PL/SQL block, C, or Java procedure associated with a table, view, schema, or the database.
B) A database trigger executes implicitly whenever a particular event takes place.
C) With a schema, triggers fire for each event for all users; with a database, triggers fire for each event for that specific user.
D) A database trigger fires whenever a data event (such as DML) or system event (such as logon, shutdown) occurs on a schema or database.
E) A database trigger needs to be executed explicitly whenever a particular event takes place.

Solutions: