Navicat Data Modeler is a cross-platform visual database design software developed by PremiumSoft from Hong Kong in China. It comes with good usability, has practical functions such like: designs the database structure, performs a reverse or forward engineering process, imports models from the ODBC data source, generates complex SQL/DDL, and prints models. These can help user build high-quality conceptual, logical and physical data models easily and efficiently.

PHP 5 Power Programming is a classic must-read authoritative book with 720 pages of content published in 2004, cooperatively written by 3 PHP masters (PHP 5's chief designer - Andi Gutmans, PEAR's founder - Stig Saether Bakken and PHP's core contributor - Derick Rethans). Now its full copyright has been completely free.

EZDML is a free lightweight but practical database builder from China, with which we can quickly design a database table structure, and set up the data model. To a certain extent, we can see it as a super lite version of many commonly used database modeling tools (such as SAP PowerDesigner, CA ERwin, ER/Studio, Rational Rose family, and so on).