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Oracle 1Z0-147 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: PL/SQL Fundamentals | 15% | - Declaring Variables and Data Types
|
| Topic 2: Control Structures | 15% | - Conditional statements
|
| Topic 3: Database Triggers | 15% | - Trigger concepts
|
| Topic 4: Error Handling and Exceptions | 10% | - Exception concepts
|
| Topic 5: Procedures and Functions | 20% | - Creating and invoking procedures
|
| Topic 6: Managing Dependencies and Performance | 5% | - Object dependencies
|
| Topic 7: Packages | 20% | - Package structure
|
Oracle9i program with pl/sql Sample Questions:
1. Examine this package:
CREATE OR REPLACE PACKAGE pack_cur IS CURSOR c1 IS SELECT prodid FROM poduct ORDER BY prodid DESC; PROCEDURE proc1; PROCEDURE proc2; END pack_cur; /
CREATE OR REPLACE PACKAGE BODY pack_cur IS v_prodid NUMBER; PROCEDURE proc1 IS BEGIN OPEN c1;
LOOP
FETCH c1 INTO v_prodid;
DBMS_OUTPUT.PUT_LINE('Row is: ' || c1%ROWCOUNT);
EXIT WHEN c1%ROWCOUNT >= 3;
END LOOP;
END proc1;
PROCEDURE proc2 IS
BEGIN
LOOP
FETCH c1 INTO v_prodid;
DBMS_OUTPUT.PUT_LINE('Row is: ' ||c1%ROWCOUNT);
EXIT WHEN c1%ROWCOUNT >= 6;
END LOOP;
CLOSE c1;
END proc2;
END pack_cur;
/
The product table has more than 1000 rows. The SQL *Plus SERVEROUTPUT setting is turned
on in your session.
You execute the procedure PROC1 from SQL *Plus with the command:
EXECUTE pack_cur.proc1
What is the output in your session?
A) Row is: 4 Row is: 5 Row is: 6
B) Row is: 1 Row is: 2 Row is: 3
C) ERROR at line 1:
D) Row is: Row is: Row is:
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, UPDATE_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, the EMP table is invalidated.
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 second 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 first time.
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 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) This variable cannot be assigned a value from outside of the package.
C) BB_PACK.UPD_PLAYER_STAT.V_PLAYER_AVG := .333;
D) V_PLAYER_AVG := .333;
4. The creation of which database objects will cause a DDL trigger to fire? (Choose all that apply)
A) Synonyms
B) Dimensions
C) Cluster
D) Package
E) Index
F) Function
G) Database links
5. Examine this code:
CREATE OR REPLACE TRIGGER update_emp
AFTER UPDATE ON emp
BEGIN
INSERT INTO audit_table (who, dated)
VALUES (USER, SYSDATE);
END;
You issue an UPDATE command in the EMP table that results in changing 10 rows.
How many rows are inserted into the AUDIT_TABLE?
A) None
B) 1
C) A value equal to the number of rows in the EMP table.
D) 10
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A,D | Question # 3 Answer: B | Question # 4 Answer: A,C,D,E,F | Question # 5 Answer: B |




