[From WebProNews]
SQL Injection is one of the most common security vulnerabilities on the web. Here I’ll try to explain in detail these kinds of vulnerabilities with examples of bugs in PHP and possible solutions.
If you are not so confident with programming languages and web technologies you may be wondering what SQL stands for. Well, it’s an acronym for Structured Query Language (pronounced “sequel”). It’s “de facto” the standard language to access and manipulate data in databases.
The article continues at
http://www.webpronews.com/blogtalk/blogtalk/wpn-58-20060522HowBadGuysHackintoWebsitesUsingSQLInjection.html