Many neophyte data modelers have trouble distinguishing between logical and physical data models. These novices likely cannot explain why each model exists, or the differences expressed between them.

Table A should help you work through the differences in the logical and physical models at this stage. In the current context, “implementing” really means working through the logical model’s ...

Although the original intention of a separate physical layer was to allow for differences in how database models ... The real relationship between logical and physical models degenerated into the idea ...