James R. Groff is senior vice president of business strategy at Oracle Corporation. He is a SQL expert whose SQL-oriented software company, TimesTen Performance Software, was acquired by Oracle in 2005. Paul N. Weinberg is senior vice president of NetWeaver MDM at SAP. He is a SQL expert whose SQL-oriented software company, A2i, Inc., was acquired by SAP in 2004. Weinberg is the bestselling author, with James Groff, of the previous editions of this book.
Andrew J. (Andy) Oppel has designed and implemented hundreds of databases for a wide range of applications. He is the author of Databases Demystified and SQL Demystified .Robert Sheldon is a consultant and technical writer. He has designed and implemented various Access and SQL Server databases