Relationships and entity relationship diagrams A table in a database holds the attributes for one entity only. Data can then be added in the form of records.

Relationships and entity relationship diagrams A table in a database holds the attributes for one entity only. Data can then be added in the form of records.

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 ...