Abstract
Four specific problems are discussed as concrete examples foir the new requirements placed on the database technology by the e-commerce applications. In particular, some of the topics included the search provided by most e-Commerce sites that is rather primitive and is based on the traditional database metaphor of submitting an sequential query language (SQL) query and packaging the response as a hypertext markup language (HTML) page. This discusses the new metaphor and present the required computational techniques and data structures.