A table in a database holds the attributes for one entity only. Data can then be added in the form of records. Rather than storing information in one table, relational databases store data across ...

A table in a database holds the attributes for one entity only. Data can then be added in the form of records. Rather than storing information in one table, relational databases store data across ...

Standard graphical representations have played a crucial role in science and engineering throughout the last century. Without electrical symbolism, it is very likely that our industrial society would ...

Occasionally one sees an entity-relationship diagram (ERD) having an unusual characteristic. The unusual element is an entity (or more than one) that seems to have a relationship with every other ...

In building a logical data model, some entities are considered strong, other entities are considered weak. Strong entities are the most foundational elements within a nascent Entity-Relationship ...