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 .

Most projects benefit from having a data model. ... model. The entity-relationship model is ... Attributes are the properties or characteristics of an entity or a relationship. ER diagrams can ...

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 ...