... where the child entity points to its parent. Rather than the bookstore having the books, the relationship between the entities is expressed the other way around, where the books maintain a foreign ... company I did some work for had used a popular Java-based ORM tool for its e-commerce application. The tool mapped “has-a” relationships from an object-centric rather than table-centric point of ... higher-priority requirement in another. The database is, in most cases, the center of the applications it drives. The data controls the applications, to a great extent, and without the data the...