Oracle Database Programming MCQs with Answers
Practice important Oracle Database Programming MCQs with answers and explanations.
Multiple Choice Questions
Q311: Which statement accurately describes the Package Body?
- A: It defines the types, variables, and constants available to the application
- B: It declares the public interface to the package
- C: It implements the subprograms and defines private details of the package
- D: It creates the database objects necessary for the package
View Answer
D
Q312: What is the primary purpose of encapsulating related types, items, and subprograms into a PL/SQL package?
- A: To hide implementation details and provide a clear interface
- B: To improve the database schema
- C: To create multiple copies of database objects
- D: To optimize query performance
View Answer
A
Q313: Which PL/SQL code snippet correctly creates a package specification for a function?
- A: CREATE PACKAGE my_package AS FUNCTION my_function(p1 NUMBER) RETURN NUMBER; END my_package;
- B: CREATE PACKAGE my_package AS FUNCTION my_function(p1 NUMBER) RETURN NUMBER; CREATE PACKAGE BODY my_package AS FUNCTION my_function(p1 NUMBER) RETURN NUMBER IS BEGIN RETURN p1; END; END my_package;
- C: CREATE PACKAGE my_package AS PROCEDURE my_procedure; END my_package;
- D: CREATE PACKAGE BODY my_package AS FUNCTION my_function(p1 NUMBER) RETURN NUMBER; END my_package;
View Answer
A
Q314: In which part of the package would you define a function's implementation?
- A: Package Specification
- B: Package Body
- C: Package Header
- D: Package Interface
View Answer
B
Q315: What is the purpose of the `CREATE PACKAGE BODY` statement in PL/SQL?
- A: It creates the package specification
- B: It defines the implementation details for the subprograms declared in the package specification
- C: It deletes the package
- D: It creates a new database table
View Answer
B
Q316: Fill in the blank: The Package Specification provides the _______ to the application, while the Package Body provides the _______.
- A: public interface; implementation details
- B: implementation details; public interface
- C: private declarations; public interface
- D: public interface; private declarations
View Answer
A
Q317: What are the two main parts of a PL/SQL package?
- A: Package Specification and Package Body
- B: Package Header and Package Body
- C: Package Interface and Package Implementation
- D: Package Definition and Package Schema
View Answer
A
Q318: Which part of the package is responsible for defining subprograms and cursors?
- A: Package Specification
- B: Package Body
- C: Package Header
- D: Package Interface
View Answer
B
Q319: Fill in the blank: To create a package in PL/SQL, you must first define the package _______ and then define the package _______.
- A: body; specification
- B: specification; body
- C: interface; implementation
- D: header; content
View Answer
B