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Oracle9i program with pl/sql Sample Questions:

1. Which two describe a stored procedure? (Choose two)

A) A stored procedure is a type of PL/SQL subprogram that performs an action.
B) The executable section of a stored procedure contains statements that assigns values, control execution, and return values to the calling environment.
C) A stored procedure has three parts: the specification, the body, and the exception handler part.
D) A stored procedure is a named PL/SQL block that can accept parameters.
E) A stored procedure is typically written in SQL.

2. Examine this package
CREATE OR REPLACE PACKAGE discounts
IS
g_id NUMBER := 7839;
discount _rate NUMBER := 0.00;
PROCEDURE display_price (p_price NUMBER);
END discounts;
/
CREATE OR REPLACE PACKAGE BODY discounts
IS
PROCEDURE display_price (p_price NUMBERI)
IS
BEGIN
DBMS_OUTPUT.PUT LINE ( 'Discounted '||
TO_CHAR(p_price*NVL(dlscount_rate, 1)));
END display_price;
BEGIN
Discount_rate = 0.10;
END discounts;
/
The SQL*Plus SERVEROUTPUT setting is turned on in your session. You execute the procedure
DISPLAY_PRICE from SQL*Plus with the command EXECUTE discounts. display_price (100);
What is the result?

A) Discounted 10
B) Discounted NULL
C) Discounted 100
D) Discounted 0.00
E) Discounted 0.10

3. What part of a database trigger determines the number of times the trigger body executes?

A) Trigger type
B) Trigger event
C) Trigger timing
D) Trigger body

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 stand-alone procedure referencing a package construct as well as the package body become 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 remains valid.
C) 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
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 becomes invalid

5. When using a PL/SQL stored package, how is a side effect defined?

A) changes only to packaged public variables defined in a package body
B) changes to database tables or packaged public variables defined in a package body
C) changes to database tables or packaged variables defined in a package specification
D) changes only to packaged public variables defined in a package specification
E) changes only to database tables

Solutions: