On 8/8/07, Elliotte Harold <[EMAIL PROTECTED]> wrote: > Some relational databases have added non-relational, fulltext search > extensions to their products just as some have added non-relational XML > extensions. These are adequate for simple uses, if you don't push them > too hard. However they are completely incapable of carrying out queries > like, "Give me the title and first paragraph of every chapter of this > book" (something Safari routinely does) because they don't see the > structure of a document, only the text.
I'm glad we have multiple tools to bring to bear on this kind of problem, because I worry about the performance implications of querying an XML database for the average price of those books, or performing an operation that adds another field (tag?) to each book's "record". If it's not too much trouble, could you give us some other use cases for an XML database? Because title and first paragraph, if that's something a system "routinely does" could easily be stored as relational data at the time of import. -- Chris Snyder http://chxo.com/ _______________________________________________ New York PHP Community Talk Mailing List http://lists.nyphp.org/mailman/listinfo/talk NYPHPCon 2006 Presentations Online http://www.nyphpcon.com Show Your Participation in New York PHP http://www.nyphp.org/show_participation.php
