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Oracle9i program with pl/sql Sample Questions:

1. How can you migrate from a LONG to a LOB data type for a column?

A) Use the DBMS_MANAGE_LOB.MIGRATE procedure.
B) Use the ALTER TABLE command.
C) You cannot migrate from a LONG to a LOB date type for a column.
D) Use the DBMS_LOB.MIGRATE procedure.
E) Use the UTL_MANAGE_LOMIGRATE procedure.

2. What can you do with the DBMS_LOB package?

A) Use the DBMS_LOB.WRITE procedure to write data to a BFILE.
B) Use the DBMS_LOB.FILECLOSE procedure to close the file being accessed.
C) Use the DBMS_LOB.FILEEXISTS function to find the location of a BFILE.
D) Use the DBMS_LOBFILENAME function to locate an external BFILE.

3. 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;
You make a change to the body of the BB_PACK package. The BB_PACK body is recompiled.
What happens if the stand alone procedure VALIDATE_PLAYER_STAT references this package?

A) VALDIATE_PLAYER_STAT is invalidated.
B) VALIDATE_PLAYER_STAT is not invalidated.
C) VALIDATE_PLAYER_STAT cannot recompile and must be recreated.
D) VALIDATE_PLAYER_STAT and BB_PACK are invalidated.

4. Which type of argument passes a value from a procedure to the calling environment?

A) OUT
B) VARCHAR2
C) IN
D) BOOLEAN

5. You have a row level BEFORE UPDATE trigger on the EMP table. This trigger contains a SELECT statement on the EMP table to ensure that the new salary value falls within the minimum and maximum salary for a given job title.
What happens when you try to update a salary value in the EMP table?

A) The trigger fails because a SELECT statement on the table being updated is not allowed.
B) The trigger fails because you cannot use the minimum and maximum functions in a BEFORE UPDATE trigger.
C) The trigger fires successfully.
D) The trigger fails because it needs to be a row level AFTER UPDATE trigger.

Solutions: