Title :
Foreign Superkeys and Constant References
Author_Institution :
Norwegian Univ. of Sci. & Technol., Trondheim
Abstract :
A foreign superkey in relational database theory is a set of attributes referring to a superkey of some relation variable. In this paper, the notion of constant references is introduced: foreign superkeys with constant elements, which lead to simplified constraint formulation and integrity enforcement when implementing entity subclassing in relational databases.
Keywords :
data integrity; relational databases; constant references; constraint formulation; foreign superkeys; integrity enforcement; relational database; Constraint theory; Data engineering; Data models; Information science; Relational databases; Relational theory; entity; foreign keys.; integrity constraints; subclassing;
Conference_Titel :
Database Engineering and Applications Symposium, 2007. IDEAS 2007. 11th International
Conference_Location :
Banff, Alta.
Print_ISBN :
978-0-7695-2947-9
DOI :
10.1109/IDEAS.2007.4318099
