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 ...

In a relational database, it is necessary to define the relationship that exists between different entities. Key fact At National 5 level, it is necessary to understand and exemplify a one-to-many ...