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Oracle 1Z0-147 Exam Syllabus Topics:

Section	Objectives
Stored Procedures and Functions	- Creation and execution - Parameters and return values
PL/SQL Fundamentals	- Variables and data types - PL/SQL block structure
Triggers	- Trigger timing and events - DML triggers
SQL Fundamentals	- Joins and set operations - Basic SELECT statements and filtering
Exception Handling	- Predefined exceptions - User-defined exceptions
Cursors	- Implicit and explicit cursors - Cursor FOR loops
Control Structures	- Loops (FOR, WHILE, LOOP) - Conditional statements (IF, CASE)
Advanced PL/SQL Features	- Records and complex data types - Collections (associative arrays, nested tables)
Packages	- Advantages of packages - Package specification and body

Oracle9i program with pl/sql Sample Questions:

Question #1

You need to implement a virtual private database (vpd). In order to have the vpd functionality, a trigger is required to fire when every user initiates a session in the database.What type of trigger needs to be created?

A. Application trigger
B. INSTEAD OF trigger
C. System event trigger
D. DML trigger

Answer: C

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Question #2

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

Answer: D,E

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Question #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;
Which statement will successfully assign $75,000,000 to the V_MAX_TEAM_SALARY variable
from within a stand-alone procedure?

A. V_MAX_TEAM_SALARY := 7500000;
B. This variable cannot be assigned a value from outside the package.
C. BB_PACK.ADD_PLAYER.V_MAX_TEAM_SALARY := 75000000;
D. BB_PACK.V_MAX_TEAM_SALARY := 75000000;

Answer: D

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Question #4

You create a DML trigger. For the timing information, which is valid with a DML trigger?

A. ON STATEMENT EXECUTION
B. BEFORE
C. INSTEAD
D. ON SHUTDOWN
E. DURING

Answer: B

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Question #5

Local procedure A calls remote procedure B.
Procedure B was compiled at 8 A.M.
Procedure A was modified and recompiled at 9 A.M. Remote procedure B was later modified and recompiled at 11 A.M.
The dependency mode is set to TIMESTAMP.
What happens when procedure A is invoked at 1 P.M?