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