In this chapter, you will learn:
The difference between data and information
What a database is, the various types of databases, and why they are valuable assets for decision making
The importance of database design
How modern databases evolved from file systems
About flaws in file system data management
The main components of the database system
The main functions of a database management system (DBMS)
Good decisions require good information derived from raw facts
Data is managed most efficiently when stored in a database
Databases evolved from computer file systems
Understanding file system characteristics is important
Databases solve many of the problems encountered in data management
Used in almost all modern settings involving data management:
Business
Research
Administration
Important to understand how databases work and interact with other applications