Petite, Thank you for your material.
I will go through it. Thanks, Durga. On Tue, Jan 3, 2012 at 1:02 AM, Petite Abeille <petite.abei...@gmail.com>wrote: > > On Jan 2, 2012, at 5:25 PM, Jay A. Kreibich wrote: > > > Oracle has some syntax short-cuts to deal with this, but they're > non-standard. > > Recursive 'with' clause anyone? > > "goodbye Connect By or: the end of hierarchical querying as we know it" > > http://technology.amis.nl/blog/6104/oracle-rdbms-11gr2-goodbye-connect-by-or-the-end-of-hierarchical-querying-as-we-know-it > > > http://docs.oracle.com/cd/E11882_01/server.112/e10592/statements_10002.htm#i2077142 > > > Regarding hierarchical data, in addition to Joe Celkos nice book, here are > a couple of links summarizing different structures: > > Models for hierarchical data > http://www.slideshare.net/billkarwin/models-for-hierarchical-data > > What are the Options for Storing Hierarchical Data in a Relational > Database? > > http://stackoverflow.com/questions/4048151/what-are-the-options-for-storing-hierarchical-data-in-a-relational-database > > Aside from the materialized path approach, I personally like so-called > "closure tables": > > http://dirtsimple.org/2010/11/simplest-way-to-do-tree-based-queries.html > > And if you feel ambitious, matrix encoding might be for you: > > http://vadimtropashko.files.wordpress.com/2011/07/ch5.pdf > > As always, YMMV as to which one of these structures work best for a given > scenario. > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
