SQL For Dummies
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 discuss data storage, devote a
section to how the relational model compares with other major models, and
provide a look at the important features of relational databases.
Before I talk about S ... read full excerpt from SQL For Dummies ebook
