This unique book shows how ORN can be used in UML class diagrams and database definition languages (DDLs). This will allow the reader to better model and implement relationships and thus more productively develop database applications.For example, a relationship modeled as one-to-many in an ER diagram must be defined as a foreign key minus a UNIQUE constraint in SQL; the one-to-many designation is lost. In addition, more detailed knowledge about relationshipanbsp;...
|Title||:||Object Relationship Notation (ORN) for Database Applications|
|Author||:||Bryon K. Ehlmann, Ilpo Laine, Olli Lehto, Tuomas Sorvali|
|Publisher||:||Springer Science & Business Media - 1979|