Diagram showing a self-referencing SQL table for product category alongside the category table with a closure table. Hierarchies are an SQL smell and a Requirements smell, because they are difficult to understand, document, specify and communicate.
Making Sense of Information Technology
Diagram showing a self-referencing SQL table for product category alongside the category table with a closure table. Hierarchies are an SQL smell and a Requirements smell, because they are difficult to understand, document, specify and communicate.