The Nested Universal Relation Database Model - Lecture Notes in Computer Science 595 (Paperback)
  • The Nested Universal Relation Database Model - Lecture Notes in Computer Science 595 (Paperback)
zoom

The Nested Universal Relation Database Model - Lecture Notes in Computer Science 595 (Paperback)

(author)
£62.99
Paperback 182 Pages / Published: 20/05/1992
  • We can order this

Usually dispatched within 3 weeks

  • This item has been added to your basket
This monograph describes a method of data modelling whose basic aim is to make databases easier to use by providing them with logical data independence. To achieve this, the nested UR (universal relation) model is defined by extending the classical UR model to nested relations. Nested relations generalize flat relations and allow hierarchically structured objects to be modelled directly, whereas the classical UR model allows the user to view the database as if it were composed of a single flat relation. The author presents a comprehensive formalisation of the nested relational model, which incorporated null values into the model. Functional data dependencies and the classical notion of lossless decomposition are extended to nested relations and an extended chase procedure is defined to test the satisfaction of the data dependencies. The nested UR model is defined, and the classical UR model is shown to be a special case of the nested model.This implies that an UR interface canbe implemented by using the nested UR model, thus gaining the full advantages of nested relations over flat relations.

Publisher: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
ISBN: 9783540554936
Number of pages: 182
Weight: 299 g
Dimensions: 235 x 155 x 10 mm
Edition: 1992 ed.

You may also be interested in...

Doing Data Science
Added to basket
£35.99
Paperback
Think Stats 2e
Added to basket
£27.99
Paperback
Step by Step Databases
Added to basket
Enterprise Data Architecture
Added to basket
T-SQL Querying
Added to basket
£44.49
Paperback
The Data Warehouse Toolkit
Added to basket
Coding For Kids For Dummies
Added to basket
Access 2013 All-in-One For Dummies
Added to basket
Hadoop - The Definitive Guide 4e
Added to basket
Learning Spark
Added to basket
£31.99
Paperback
Hadoop For Dummies
Added to basket
£21.99
Paperback
PHP and MySQL Web Development
Added to basket
Big Data For Dummies
Added to basket
Data Science for Business
Added to basket
Data Wrangling with Python
Added to basket

Reviews

Please sign in to write a review

Your review has been submitted successfully.