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Database Systems: Additional Characteristics

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Database Systems: Additional Characteristics

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Questions and Answers

What is stored in the DBMS catalog in a database system?

Catalog of physical files in the system

Data values and data item names

Complete description of the database structure (correct)

Database users' personal information

What is meta-data in the context of a database system?

Data values and data item names

Structure of the primary database

Description of the database structure (correct)

Physical files in the system

Why is the DBMS catalog important in a database system?

It provides information about the database structure (correct)

It helps users access specific files in a database

It stores personal information of users

It contains information about data values only

What is the term used to describe the database and DBMS software together?

Database system Signup and view all the answers

Which file in the database system stores the prerequisites of each course?

PREREQUISITE file Signup and view all the answers

How is the term 'query' commonly used in relation to databases?

To modify data Signup and view all the answers

What distinguishes NOSQL systems from traditional database systems?

They do not require meta-data Signup and view all the answers

What does the STUDENT file store in the UNIVERSITY database example?

Student data Signup and view all the answers

What allows program-data independence and program-operation independence in a database management system (DBMS)?

Data abstraction Signup and view all the answers

In a DBMS environment, what needs to be changed to reflect the inclusion of a new data item like Birth_date in the STUDENT records?

Description of STUDENT records in the catalog Signup and view all the answers

What is specified in the interface (or signature) of an operation in a database system?

Operation name and data types of its arguments Signup and view all the answers

How do user application programs operate on data in a database system?

By invoking operations through names and arguments Signup and view all the answers