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DESCRIPTION:
Welcome to database development using the industry structured query
language (SQL). Many database management system (DBMS) tools
run on a variety of hardware platforms. The differences among the tools can
be great, but all serious products have one thing in common: They support
SQL data access and manipulation. If you know SQL, you can build relational
databases and get useful information out of them.
About This Book
Relational database management systems are vital to many organizations.
People often think that creating and maintaining these systems are extremely
complex activities — the domain of database gurus who possess enlightenment
beyond that of ordinary mortals. This book sweeps away the database mystique.
In this book, you
Get to the roots of databases.
Find out how a DBMS is structured.
Discover the major functional components of SQL.
Build a database.
Protect a database from harm.
Operate on database data.
Determine how to get the information you want out of a database.
The purpose of this book is to help you build relational databases and get valuable
information out of them by using SQL. SQL is the international standard
language used around the world to create and maintain relational databases.
This edition covers the latest version of the standard, SQL:2003, as augmented
in 2005 with a thorough treatment of the use of XML with SQL.
This book doesn’t tell you how to design a database (I do that in Database
Development For Dummies, also published by Wiley Publishing, Inc.). Here I
assume that you or somebody else has already created a valid design. I then
illustrate how you implement that design by using SQL. If you suspect that
you don’t have a good database design, by all means, fix your design before
you try to build the database. The earlier you detect and correct problems in
a development project, the cheaper the corrections will be.
