Take a look at Compiere ERP (http://www.compiere.com http://www.compiere.com), they have an open source community edition. It has been many years (6+?) since I

Take a look at Compiere ERP (http://www.compiere.com http://www.compiere.com), they have an open source community edition. It has been many years (6+?) since I last looked at it, but it easily had over 500 tables. In fact a quick search shows 531 Tables and 108 Views: http://www.knowledgesuccess.com/local/doc/schemaCompiere253b http://www.knowledgesuccess.com/local/doc/schemaCompiere253b