Most database modeling tools allow you to enter a data model in one or more high-level notations (e.g., ER, IDEF1X, ORM, or UML) as well as a logical-level notation (e.g., relational). Typically a ...

Part 3 focuses on the logical modeling solution. It shows how to create and edit a logical database model and how to generate a physical database schema from it. It also explains how to reverse ...

and areas that are defined in the schema or a subset thereof. It includes database records and can include logical records as well as logical-record paths (defined below). The DBA defines logical ...