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Oracle 1Z0-147 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Error Handling and Exceptions | 10% | - Exception concepts
|
| Topic 2: Database Triggers | 15% | - Trigger concepts
|
| Topic 3: Control Structures | 15% | - Conditional statements
|
| Topic 4: Managing Dependencies and Performance | 5% | - Object dependencies
|
| Topic 5: Procedures and Functions | 20% | - Creating and invoking functions
|
| Topic 6: Packages | 20% | - Advanced package features
|
| Topic 7: PL/SQL Fundamentals | 15% | - Overview of PL/SQL
|
Oracle9i program with pl/sql Sample Questions:
Examine this procedure:
CREATE OR REPLACE PROCEDURE DELETE_PLAYER (V_ID IN NUMBER) IS BEGIN
DELETE FROM PLAYER
WHERE ID = V_ID;
EXCEPTION
WHEN STATS_EXITS_EXCEPTION
THEN DBMS_OUTPUT.PUT_LINE
('Cannot delete this player, child records exist in PLAYER_BAT_STAT table');
END;
What prevents this procedure from being created successfully?
- A. A comma has been left after the STATS_EXIST_EXCEPTION exception.
- B. Only predefined exceptions are allowed in the EXCEPTION section.
- C. The STATS_EXIST_EXCEPTION has not been declared as an exception.
- D. The STATS_EXIST_EXCEPTION has not been declared as a number.
Correct Answer: C 🗳️
Explanation: Only visible for ActualVCE members. You can sign-up / login (it's free).
You need to create a trigger on the EMP table that monitors every row that is changed and places this information into the AUDIT_TABLE.What type of trigger do you create?
- A. FOR EACH ROW statement-level trigger on the EMPtable.
- B. Statement-level trigger on the AUDIT_TABLE table.
- C. FOR EACH ROW trigger on the EMP table.
- D. Statement-level trigger on the EMP table.
- E. FOR EACH ROW trigger on the AUDIT_TABLE table.
Correct Answer: C 🗳️
Explanation: Only visible for ActualVCE members. You can sign-up / login (it's free).
Examine this package specification:
CREATE OR REPLACE PACKAGE concat_all
IS
v_string VARCHAR2(100);
PROCEDURE combine (p_num_val NUMBER);
PROCEDURE combine (p_date_val DATE);
PROCEDURE combine (p_char_val VARCHAR2, p_num_val NUMBER);
END concat_all; /
Which overloaded COMBINE procedure declaration can be added to this package specification?
- A. PROCEDURE combine;
- B. PROCEDURE combine (p_no NUMBER);
- C. PROCEDURE concat_all
(p_num_val VARCHAR2, p_char_val NUMBER); - D. PROCEDURE combine (p_val_1 VARCHAR2, p_val_2 NUMBER;
Correct Answer: A 🗳️
Explanation: Only visible for ActualVCE members. You can sign-up / login (it's free).
Which two statements about packages are true? (Choose two)
- A. You can pass parameters to packages.
- B. Packages can be nested.
- C. The contents of packages can be shared by many applications.
- D. A package is loaded into memory each time it is invoked.
- E. You can achieve information hiding by making package constructs private.
Correct Answer: C,E 🗳️
Explanation: Only visible for ActualVCE members. You can sign-up / login (it's free).
Examine this code:
CREATE OR REPLACE PACKAGE metric_converter
IS
c_height CONSTRAINT NUMBER := 2.54;
c_weight CONSTRAINT NUMBER := .454;
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER;
END;
/
CREATE OR REPLACE PACKAGE BODY metric_converter
IS
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * c_height;
END calc_height;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_weight_in_pounds * c_weight
END calc_weight
END metric_converter;
/
CREATE OR REPLACE FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * metric_converter.c_height;
END calc_height;
/
Which statement is true?
- A. The stand alone function CALC_HEIGHT cannot be created because its name is used in a packaged function.
- B. If you remove the package specification, then the package body is removed.
- C. If you remove the package body, then the package specification and the stand alone stored function CALC_HEIGHT are removed.
- D. If you remove the package specification, then the package body and the stand alone stored function CALC_HEIGHT are removed.
- E. If you remove the stand alone stored function CALC_HEIGHT, then the METRIC_CONVERTER package body and the package specification are removed.
- F. If you remove the package body, then the package specification is removed.
Correct Answer: B 🗳️
Explanation: Only visible for ActualVCE members. You can sign-up / login (it's free).
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