Re: After XQuery, are we done?
Hunsberger, Peter wrote: > I don't get the distinction. As soon as you've got a graph you've got a > tree (or perhaps many trees). > Not necessarily. All trees are graphs but not all graphs are trees. For instance a pure tree can't represent a cycle but a graph can. XML's rule that a node can only have one parent is not a limit of graphs in general. -- Elliotte Rusty Harold elharo@m... XML in a Nutshell 3rd Edition Just Published! http://www.cafeconleche.org/books/xian3/ http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/ref=nosim
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