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What is a Database?

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Questions and Answers

Which phase involves defining the overall design of the database and determining the structure that will hold the data?

Logical design

Conceptual design (correct)

Requirements specification and analysis

Physical design

What is a main characteristic of the database approach described in the text?

Defining data multiple times for various users

Each user defines and implements the files needed for a specific software application

Data abstraction (correct)

File processing for each user

What is one of the purposes of the Database Catalog mentioned in the text?

Preventing program-operation independence

Forcing program-data dependence

Storing data separately from access programs (correct)

Maintaining multiple copies of data files

What does Program-Operation Independence allow according to the text?

Allows changing implementations without affecting interfaces Signup and view all the answers

What does Data Model serve as according to the text?

A method to provide conceptual representation of data Signup and view all the answers

What is the purpose of a database?

Represent some aspect of the real world Signup and view all the answers

Which of the following is NOT an example of a database application?

Artificial intelligence databases Signup and view all the answers

What is the function of a DBMS?

Create and maintain a database Signup and view all the answers

What does defining a database involve?

Specify the data types, structures, and constraints of the data to be stored Signup and view all the answers

What is metadata in the context of databases?

Descriptive information stored by the DBMS Signup and view all the answers