Covered this and several other techniques here: http://www.slideshare.net/quipo/trees-in-the-database-advanced-data-structures http://www.slideshare.net/quipo/t

Covered this and several other techniques here: http://www.slideshare.net/quipo/trees-in-the-database-advanced-data-structures http://www.slideshare.net/quipo/trees-in-the-database-advanc...