I am new to magento, If I want to add custom fields to
sales_flat_order table how Can I do?
there are 6 tables are link up one to another. So if I want to add custom field/column to
Is there required to add another 5 tables to reference field/column? please guide me in-detail?
guide/suggest me what is the relation between those 6 tables how it forms together at the run time when