Chapter 1

A column or set of columns which are used to uniquely identify each row

A key

What does sql stand for

Structured query language

Typical relational DBMS's In use today Include all of the following EXCEPT..

Symantec

In an information system, another term that is sometimes used to describe the DBMS is:

the back end.

A database table can be thought of as

Data organized in rows and columns

In an information system that uses the database approach, what are the essential components?

Data, DBMS, and Application

The purpose of the database schema

Define the structure of the database

What is DBMS data security concerned with?

Enforcing restrictions on who is able to access data

What are two of the most important pieces of information stored in a database about an entity?

Attributes and Relationships

How is a relationship btwn entities implemented in database tables

With foreign keys