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Weak entity

Known as: Weak entity set 
In a relational database, a weak entity is an entity that cannot be uniquely identified by its attributes alone; therefore, it must use a foreign key… 
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Related topics

Related topics

9 relations
Associative entityDatabase normalizationDiscriminatorEntity–relationship model

Broader (1)

Relational model

Papers overview

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2018
2018
Implementación Asistida de Bases de Datos Relacionales en Firebird/Interbase
Un universo de discurso puede representarse a través de un diseño conceptual traducible en un modelo de datos lógico relacional y… 
2015
2015
Advance Articulated Entity Relationship (AAER) Diagram for Relational Database
The Entity-Relationship model (ER) is a systematic way of describing and defining many systems. The Articulated Entity… 
2013
2013
Extraction of a temporal conceptual model from a relational database
Related to the problem of temporal database design, a relational target model has been designed from a temporal conceptual model… 
2013
2013
Database Modelling Using WSML in the Specification of a Banking Application
—We demonstrate through a sample application, E-banking, that the Web Service Modelling Language Ontology component can be used… 
2013
2013
UML CLASS DIAGRAM OR ENTITY RELATIONSHIP DIAGRAM? AN OBJECT-RELATIONAL CONCEPTUAL IMPEDANCE MISMATCH
It is now nearly 30 years since Peter Chen’s watershed paper “The Entity-Relationship Model ‐ towards a Unified View of Data”. [1… 
2000
2000
A Practical Guide to Entity-Relationship Modeling
The Entity-Relationship (ER) model and its accompanying ER diagrams are widely used for database design and Systems Analysis… 
2000
2000
On the ontological clarity of entity-relationship diagrams : associative object type indicators and weak entity sets