Kbase P66799: What is Data Corruption
Autor |
  Progress Software Corporation - Progress |
Acesso |
  Público |
Publicação |
  09/02/2004 |
|
Status: Unverified
GOAL:
What is Data Corruption
FIX:
Lost integrity, or the process of losing integrity. Data corruption can occur on two levels: physical and logical.
Physical corruption means the data itself has been inappropriately altered, for example, by a hardware failure causing a dropped or stuck bit that creates a value of 0 or 3 in place of a 1.
Logical corruption means different elements inappropriately get out of sync with one another, often because a multi-step operation was neither fully completed nor fully undone. No physical corruption is involved.