Karteikarten
Ohne Titel
Karten in diesem Stapel (3)
- 1ER ModelEntities
Relationships
Attributes - 2EntitiesOccurs Many Times
Person, Place, Object, Event, Concept - 3AttributesA property or characteristic of an entity
Associated with one entity
Single - Cannot be broken down further
Composite - Can be broken down further (e.g address > Street Name, Postcode)
Multi Valued - Has many values
(e.g area code of phone number 07xxxxxxxx)
Complex -
Informationen
- Beschreibung
- Karteikarten am Ohne Titel, erstellt von Jack Morley am 07/05/2019.
- Erstellt von
- Jack Morley
- Aufrufe
- 0
- Bewertung
Mehr zu Entity-Relationship Model and Diagrams