Introduction to Structured Query Language
Copyright 1997 by James Hoffman
Copyright 1996-1997, James Hoffman. This document can
be used for free by any Internet user, but cannot be included in another
document, published in any other form, or mass produced in any way.
This page is a tutorial of the Structured Query Language (also
known as SQL) and is a pioneering effort on the World Wide Web,
as this is the first comprehensive SQL tutorial available on the Internet.
SQL allows users to access data in relational database management systems,
such as Oracle, Sybase, Informix, Microsoft SQL Server, Access, and others,
by allowing users to describe the data the user wishes to see. SQL also
allows users to define the data in a database, and manipulate that data.
This page will describe how to use SQL, and give examples. The SQL used
in this document is "ANSI", or standard SQL, and no SQL features
of specific database management systems will be discussed until the "Nonstandard
SQL" section. It is recommended that you print this page, so that
you can easily refer back to previous examples.
Table of Contents