Download Design

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Clusterpoint wikipedia , lookup

Relational model wikipedia , lookup

Object-relational impedance mismatch wikipedia , lookup

Database model wikipedia , lookup

Transcript
Problem: Data Duplication
• takes up lots of space
• can become inconsistent (misspellings)
• difficult to search (misspellings)
• difficult to change (need to change each
instance)
Mark Dixon
Page 4