I don't have that book. But the best link that I can find about the subject (with an example in Access 2000) is here:
http://www.mvps.org/access/queries/qry0023.htm I'm not on Windows right now and I haven't looked into it yet to see if this is what you mean. On 1/3/07, Dr. Tarique Sani <[EMAIL PROTECTED]> wrote:
On 1/3/07, Langdon Stevenson <[EMAIL PROTECTED]> wrote: > > This discussion has peaked my interest in MPTT implementations. I am > > working on an object system for a CMS based on CakePHP and the object > > tree is implemented using MPTT. I did a "textbook" implementation of > > the thing, which means using a recursive algorithm to reorder the tree > > traversal data (lft and rgt) for each tree node in for inserts and > > deletes. > > Tree traversal methods are not in my area of expertise unfortunately (I > am better at using the tools given to me), so excuse me if I can't add > much to this sub thread. I am however very interested to hear what you > have to say on the subject :-) If I am not mistaken Joe Celko's book on Nested Tree sets has a chapter on what to do when your trees need frequent inserts.... /me adds TODO: to find that book Tarique -- ============================================================= PHP Applications for E-Biz: http://www.sanisoft.com Cheesecake-Photoblog: http://cheesecake-photoblog.org ============================================================= >
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