Add to Del.icio.us Add to Reddit Post to Digg Submit to Newsvine Store at Furl Add to Yahoo Myweb Post to Stumbleupon Post to Google


Periodic Table - Chemistry Definitions - Test your knowledge - Add to Favorites - Useful Resources - Link to Us

roll back definition

 A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 


a procedure used in file systems and database management systems to restore integrity after an incident. Data changes are made in a nonpermanent way until a complete logical transaction is completed. The changes are then committed; that is, made permanent as a group. If there is a problem, all changes in the logical transaction are deleted; that is, rolled back.

See also:

resonant two-photon ionization (R2PI) definition
rotating disk electrode (RDE) definition
return on investment (ROI) definition
resistance thermometer definition
Rowland ghosts definition