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 ...

National 5; Design Relationships and entity relationship diagrams. Designing queries and establishing a data dictionary are important. Decisions should be informed by the Data Protection Act ...