To the people who are accomplished in its use, Structured Query Language (SQL) is a highly capable, eminently flexible, even beautiful way of describing the data that you want from a database, or the changes that you want to make to a database. For the rest of us, however, SQL is a... more

In 2000, Jakob Nielsen, the world's leading expert on Web usability, published a book that changed how people think about the Web Designing Web Usability (New Riders). Many applauded. A few jeered. But everyone listened. The best-selling usability guru is back and has revisited his classic... more

Regular expressions help users and developers to find and manipulate text more effectively and efficiently. In addition, regular expressions are supported by many scripting languages, programming languages, and databases. This example-rich tutorial helps debunk the traditional reputation of... more