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> > Sure, a relational database might not be the best fit for a given > > hierarchical structure. But for other cases the fit may be as good or > > better than any other database.... Joe Celko's article about the adjacency list approach for processing hierarchies with SQL: http://www.sqlsummit.com/AdjacencyList.htm This isn't an XML-specific approach and it doesn't use the XML type of Oracle 10g or Microsoft SQL Server. ======== Ken North =========== www.WebServicesSummit.com www.SQLSummit.com www.GridSummit.com
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