Tables and Entities

How to use different data models and visual representation of Databases |  by Lazar Gugleta | Towards Data Science

• A relational database describes the
relationships among different kinds of data
– Captures ideas like those defined in the Affinity
and Collection rules
– Allows software to answer queries about them
• Any relational DB can be described in XML
– But it is not the case that every XML description
defines a relational DB.