In contrast to earlier products, DB2 9 allows XML documents to remain XML, rather than breaking them up and storing them in relational tables in ways that might compromise their integrity. Any data stored in the server -- whether relational or XML -- can be retrieved using either SQL or XQuery.

“Most of the vendors in the industry, including us since late 1999, have been able to support XML in a relational context,” said Jeff Jones, IBM’s director of strategy for data servers. “But that’s really forcing limitations on XML.”

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