Chapter One
Relational Database Fundamentals
In This Chapter
* Organizing information
* Defining database
* Defining DBMS
* Comparing database models
* Defining relational database
* Considering the challenges of database design
SQL (pronounced
ess que ell, not
see'qwl) is an industry standard language
specifically designed to enable people to create databases, add new data
to databases, maintain the data, and retrieve selected parts of the data.
Various kinds of databases exist, each adhering to a different conceptual
model. SQL was originally developed to operate on data in databases that
follow the
relational model. Recently, the international SQL standard has
incorporated part of the
object model, resulting in hybrid structures called
object relational databases. In this chapter, I disc ...
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