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Korry Douglas is the Director of Research and Development for Appx Software. Over the last two decades, he has worked on the design and implementation of a number of high-level languages and development environments. His products interface with many relational (and non-relational) databases. Working with many different database products (Oracle, Sybase, SQL Server, PostgreSQL, MySQL, MSQL) has given him a unique understanding of the commonalities of and differences between databases.