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This page contains all of the posts and discussion on MemeStreams referencing the following web page: Implementing An N-Level Nested Tree In PHP And PostgreSQL, Part 1 - PHP articles and PHP tutorials - PHP 5, MySQL, PostgreSQL, AJAX, Web 2.0. You can find discussions on MemeStreams as you surf the web, even if you aren't a MemeStreams member, using the Threads Bookmarklet.

Implementing An N-Level Nested Tree In PHP And PostgreSQL, Part 1 - PHP articles and PHP tutorials - PHP 5, MySQL, PostgreSQL, AJAX, Web 2.0
by Lost at 3:02 pm EDT, Aug 28, 2008

Introduction

This series of articles is about implementing a nested tree using PHP and PostgreSQL. The theory and code in these articles also applies to MySQL, not just PostgreSQL.

An N-Level nested tree is a way to represent hierarchical data, such as a list of directories and files in your operating system, or the listings in a directory such as the Open Directory Project. There can be any number of levels and any number of elements within each level.

The goal is to be able lookup data in the tree as quickly as possible with minimal strain on resources. We will be implementing this using the nested tree model by Joe Celko.


 
 
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