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Oracle9i program with pl/sql Sample Questions:

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

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

2. Which statement is valid when removing procedures?

A) Use a drop procedure statement to drop a standalone procedure.
B) For faster removal and re-creation, do not use a drop procedure statement.
Instead, recompile the procedure using the alter procedure statement with the REUSE SETTINGS
clause.
C) Use a drop procedure statement to drop a procedure that is part of a package.
Then recompile the package body.
D) Use a drop procedure statement to drop a procedure that is part of a package.
Then recompile the package specification.

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

4. 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 V_PLAYER_AVG NUMBER(4,3); 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; VALIDATE_PLAYER_STAT(V_ID);
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 .333 to the V_PLAYER_AVG variable from a procedure
outside the package?

A) BB_PACK.V_PLAYER_AVG := .333;
B) V_PLAYER_AVG := .333;
C) This variable cannot be assigned a value from outside of the package.
D) BB_PACK.UPD_PLAYER_STAT.V_PLAYER_AVG := .333;

5. Which statement is true about removing packages?

A) Removing the package body removes the specification too
B) Removing a package specification removes all stand alone stored functions named in the specification
C) Removing a package specification removes the body too
D) You must remove the package body first
E) You must remove both the package body and the specification separately

Solutions: