Rick Greenwald has been in the technology industry for over 20 years and is the author of 12 previous books, most of them on Oracle. He has been involved with development and databases for his entire career, including stops at Data General, Cognos, Gupta Technologies, and his current employer, Oracle. Computers and computing are a sideline for Rick - his real job is father to his three wonderful girls, with a primary hobby of music appreciation. Robert Stackowiak is Senior Director of Business Intelligence (BI) in Oracle's Technology Business Unit. He is recognized worldwide for his expertise in business intelligence and data warehousing in leading the North American BI team at Oracle. His background includes over 20 years in IT related roles at Oracle, IBM, Harris Computer Systems, and the U.S. Army Corps of Engineers including management of technical teams, software development, sales and sales consulting, systems engineering, and business development. Gary Dodge has been focused on database technology since his first COBOL programming job with IMS DB/DC in 1976. He joined Oracle Corporation in 1987 and has served in various management and technical positions within both the sales and consulting divisions. He has been a frequent speaker on database topics at many local and national information technology conferences. In addition to several magazine articles, he is co-author (with Tim Gorman) of Oracle8 Data Warehousing and Essential Oracle8i Data Warehousing, both published by John Wiley & Sons. David Klein has been in the technology industry for over 20 years with a variety of companies, including Data General, Wang Laboratories, Gupta Technologies, Oracle, and a few consulting services companies. He has had many roles, including management of application development and database design teams, sales and sales consulting, systems engineering and marketing. Recently, he has focused on developing classroom and online training courses. An active wife and two boys and a 200-year-old house take up any free time. Ben Shapiro is the president of ObjectArts Inc., a New York City-based technology consulting company, and has been designing database systems with Oracle since 1997. ObjectArts has worked with many large corporate clients developing XML-based publishing tools and web-based applications. Before ObjectArts, Ben worked with several NYC-based startup companies as a technical lead building content management software. Christopher G. Chelliah joined Oracle as a Consultant in 1995. He brings with him project management, architecture, and development experience from a number of large, multinational sites in the mining, oil and gas, and telecom industries. Chris has been involved with emerging and database technologies for his entire career and is an accomplished software architect with a flair for business development. His expertise has been actively sought by a number of major Oracle clients in Australia, Europe, and the United States. Chris, his wife and two kids are currently in Singapore, where he leads a team defining and executing on innovative E-Government strategies for Oracle's Public Sector industry in Asia Pacific.