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Oracle9i program with pl/sql Sample Questions:

1. Which two statements about packages are true? (Choose two)

A) The package specification is optional, but the package body is required.
B) The specification and body of the package are stored together in the database.
C) The specification and body of the package are stored separately in the database.
D) Both the specification and body are required components of a package.
E) The package specification is required, but the package body is optional.

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

3. Which two dictionary views track dependencies? (Choose two)

A) USER_DEPENDENCIES
B) DBA_DEPENDENT_OBJECTS
C) USER_SOURCE
D) DEPTREE_TEMPTAB
E) USER_OBJECTS
F) UTL_DEPTREE

4. Procedure PROCESS_EMP references the table EMP.
Procedure UPDATE_EMP updates rows if table EMP through procedure PROCESS_EMP.
There is a remote procedure QUERY_EMP that queries the EMP table through the local
procedure PROCESS_EMP.
The dependency mode is set to TIMESTAMP in this session.
Which two statements are true? (Choose two)

A) If the signature of procedure PROCESS_EMP is modified and successfully recompiles, the EMP table is invalidated.
B) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, UPDATE_EMP gets invalidated and will recompile when invoked for the first time.
C) If the signature of procedure PROCESS_EMP is modified and successfully recompiles, UPDATE_EMP gets invalidated and will recompile when invoked for the first time.
D) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, QUERY_EMP gets invalidated and will recompile when invoked for the first time.
E) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, QUERY_EMP gets invalidated and will recompile when invoked for the second time.

5. Examine this code:
CREATE OR REPLACE PACKAGE comm_package
IS
g_comm NUMBER := 10;
PROCEDURE reset_comm(p_comm IN NUMBER);
END comm_package;
/
User Jones executes the following code at 9:01am: EXECUTE comm_package.g_comm := 15
User Smith executes the following code at 9:05am: EXECUTE comm_paclage.g_comm := 20
Which statement is true?

A) g_comm has a value of 15 at 9:03 am for both Jones and Smith.
B) g_comm has a value of 10 at 9:03am for both Jones and Smith
C) g_comm has a value of 15 at 9:06am for Jones.
D) g_comm has a value of 15 at 9:06am for Smith.
E) g_comm has a value of 10 at 9:06am for both Jones and Smith.
F) g_comm has a value of 20 at 9:06am for both Jones and Smith.

Solutions: