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This type of model is used to design the database. The physical data model contains all the specifics about how the logical model will be implemented. This model format includes table names ...
The end goal of database design is to be able to transform a logical data model into an actual physical database. A logical data model is required before you can even begin to design a physical ...
Those three kinds of data-model instances are conceptual schema, logical schema, and physical schema. A conceptual data model or conceptual schema is a high-level description of information used ...
These models can be either conceptual, logical or physical. A good data model includes primary and foreign keys, which allow you to maintain referential integrity; this allows your database to ...
CA ERwin DM is more than just a drawing tool. It enables the design of the physical data model for the benefit of target server. This process enables to perform the step of forward engineer for ...
the user must be able to enter and manipulate data in a reasonable fashion. Once the logical model is in place, you can start applying what you’ve learned to the project’s physical ...