Several SQL-to-XML conversion and translation tools are available. The Enterprise and Professional versions of the XMLSpy products from Altova.com can produce an XML schema from a relational database.

A relational optimizer renders expert opinions on data retrieval methods based on database statistics stored in the relational catalog and a query input in SQL format. The notion of optimizing data ...

Thomas LaRock: "Without a basic understanding of wait events and how the occur, you will waste a lot of time trying and guessing at how to improve the performance of a query." Optimizing SQL ...