Abstract
No new concepts are presented here that have not been discussed previously—it is just the notation that is different. The more formal notation allows queries to be expressed very concisely, and the underlying mathematics can be useful when dealing with complex situations. We will use the database described in Appendix 1 for the examples.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsNotes
- 1.
The relational theory was first introduced by the mathematician E. F. Codd in June 1970 in his article “A Relational Model of Data for Large Shared Data Banks” in Communications of the ACM: 13, pp. 377–387.
- 2.
For example: Databases in Depth: Relational Theory for Practitioners by C.J. Date (City, state: O’Reilly, 2005).
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2016 Clare Churcher
About this chapter
Cite this chapter
Churcher, C. (2016). Relational Notation. In: Beginning SQL Queries. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-1955-3_14
Download citation
DOI: https://doi.org/10.1007/978-1-4842-1955-3_14
Published:
Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-1954-6
Online ISBN: 978-1-4842-1955-3
eBook Packages: Professional and Applied ComputingApress Access BooksProfessional and Applied Computing (R0)