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

Feedback

In Focus

  • Flash XML slideshow
  • Database training

4.1.04. Desirable properties of transactions

ACID test

  • Atomicity
    • transaction as smallest unit of processing
    • transactions complete entirely or not at all
      • consequences of partial completion in flight example
  • Consistency
    • complete execution preserves database constrained state/integrity
    • e.g. Should a transaction create an entity with a foreign key then the reference entity must exist (see 4 constraints)
‹ 4.1.02. Transactionsup4.1.05. ACID test continued ›
  • s5 slideshow
 

 

 

Copyright 2007 Lightenna Limited

  • About us
  • Services
  • Products
  • Work
  • Contact