logo
  • About us
  • Services
  • Products
  • Work
  • Contact

Feedback

In Focus

  • Flash XML slideshow
  • Database training

3.2.07. Normal forms (2NF)

  • A relation Ri is in 2NF if:
    • Every nonprime attribute A in Ri is
    • fully functionally dependent on 1y key of R
  • If all keys are singletons, guaranteed
  • If Ri has composite key are
    • all non-key attributes fully functionally dependent
    • on all attributes of composite key?
‹ 3.2.06. Normalisation (1NF)up3.2.08. Normal forms (2NF) ›
  • s5 slideshow
 

 

 

Copyright 2007 Lightenna Limited

  • About us
  • Services
  • Products
  • Work
  • Contact