Relational databases hold data, right? They indeed do, but to think of a database as nothing more than a container for data is to miss out on the profound power that underlies relational technology. A far more powerful way of thinking lies in relational technologys foundation in the mathematical disciplines of logic and set theory.Databases contain truths or propositions describing some area of interest... 

Information Modeling and Relational Databases, second edition, provides an introduction to ORM (Object-Role Modeling)and much more. In fact, it is the only book to go beyond introductory coverage and provide all of the in-depth instruction you need to transform knowledge from domain experts into a sound database design. This book is intended for anyone with a stake in the accuracy and efficacy of databases:... 

SQL injection is a technique that exploits security vulnerabilities in a web site by inserting malicious code into the database that runs it. Such attacks can be used to deface or disable public websites, spread viruses and other malware, or steal sensitive information such as credit card numbers, Social Security Numbers, or passwords. Along with cross-site scripting, SQL injection represents one of...