Skip to main content

Null Values

  • Reference work entry
Encyclopedia of Database Systems

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 2,500.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Recommended Reading

  1. Grahne G. The Problem of Incomplete Information in Relational Databases. LNCS 554, Springer-Verlag, Secaucus, NJ, USA, 1991.

    Google Scholar 

  2. Levene M. and Loizou G. A Guided Tour of Relational Databases and Beyond, Chap. 5. Springer, London, UK, 1999.

    Google Scholar 

  3. Van der Meyden, R. Logical approaches to incomplete information: a survey. In Logics for Databases and Information Systems, J. Chomicki, G. Saake (eds.). Kluwer, Boston, MA, USA, 1998, pp. 307–356.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2009 Springer Science+Business Media, LLC

About this entry

Cite this entry

Bertossi, L. (2009). Null Values. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_1267

Download citation

Publish with us

Policies and ethics