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Oracle 1Z0-147 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Error Handling and Exceptions | 10% | - Handling exceptions
|
| Topic 2: Packages | 20% | - Package structure
|
| Topic 3: PL/SQL Fundamentals | 15% | - Declaring Variables and Data Types
|
| Topic 4: Database Triggers | 15% | - Trigger concepts
|
| Topic 5: Managing Dependencies and Performance | 5% | - Object dependencies
|
| Topic 6: Control Structures | 15% | - Iterative statements
|
| Topic 7: Procedures and Functions | 20% | - Creating and invoking functions
|
Oracle9i program with pl/sql Sample Questions:
When creating stored procedures and functions, which construct allows you to transfer values to and from the calling environment?
- A. local variables
- B. arguments
- C. Boolean variables
- D. Substitution variables
Correct Answer: B 🗳️
Explanation: Only visible for Real4dumps members. You can sign-up / login (it's free).
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.UPD_PLAYER_STAT.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.V_PLAYER_AVG := .333;
Correct Answer: C 🗳️
Explanation: Only visible for Real4dumps members. You can sign-up / login (it's free).
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?
- A. Procedure B is invalidated and recompiles when invoked.
- B. Procedure A is invalidated and recompiles for the first time it is invoked.
- C. There is no affect on procedure A and it runs successfully.
- D. Procedure A is invalidated and recompiles for the second time it is invoked.
Correct Answer: D 🗳️
Explanation: Only visible for Real4dumps members. You can sign-up / login (it's free).
Which statement is true about removing packages?
- A. You must remove both the package body and the specification separately
- B. Removing the package body removes the specification too
- C. Removing a package specification removes the body too
- D. You must remove the package body first
- E. Removing a package specification removes all stand alone stored functions named in the specification
Correct Answer: C 🗳️
Explanation: Only visible for Real4dumps members. You can sign-up / login (it's free).
You have the following table:
CREATE TABLE Emp_log ( Emp_id NUMBER Log_date DATE, New_salary NUMBER, Action VARCHAR(20));
You have the following data in the EMPLOYEES table:
EMPLOYEE_ID LAST_NAME SALARY DEPARTMENT_ID
100 King 24000 90 101 Kochhar 17000 90 102 De Haan 17000 90 103 Hunold 9000 60 104 Ernst 6000 60 105 Austin 4800 60 106 Pataballa 4800 60 107 Lorentz 4200 60 108 Greenberg 12000 100 201 Hartstein 13000 20 202 Fay 6000 20
You create this trigger:
CREATE OR REPLACE TRIGGER Log_salary_increase AFTER UPDATE ON employees FOR EACH ROW WHEN (:new.Salary > 1000) BEGIN INSERT INTO Emp_log (Emp_id, Log_date, New_Salary, Action) VALUES (new.Employee_id, SYSDATE, :new.SALary, 'NEW SAL'); END /
Then, you enter the following SQL statement:
UPDATE Employee SET Salary = Salary + 1000.0 Where Department_id = 20M
What are the result in the EMP_LOG table?
A EMP_ID LOG_DATE NEW_SALARY ACTION
201 24-SEP-02 13000 NEW SAL 202 24-SEP-02 600 NEW SAL
- A. No rows are inserted.
- B. EMP_ID LOG_DATE NEW_SALARY ACTION
201 24-SEP-02 NEW SAL 202 24-SEP-02 NEW SAL - C. EMP_ID LOG_DATE NEW_SALARY ACTION
201 24-SEP-02 14000 NEW SAL 202 24-SEP-02 7000 NEW SAL
Correct Answer: B 🗳️
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