Solved

difference  - Roll forward and roll back

Posted on 2010-08-13
2
2,033 Views
Last Modified: 2012-05-10
Hi experts, about reading transacton but i do not understand the difference between
Roll forward and roll back
0
Comment
Question by:enrique_aeo
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 23

Assisted Solution

by:Rajkumar Gs
Rajkumar Gs earned 25 total points
ID: 33430761
0
 
LVL 8

Accepted Solution

by:
mustaccio earned 100 total points
ID: 33431022
The rollforward process applies to the data files all transactions that are recorded in the log but not marked as applied. In other words, it repeats all changes that have happened to data. The rollback process then unapplies those transactions that are incomplete, that is, undoes the incomplete changes.
0

Featured Post

Free Backup Tool for VMware and Hyper-V

Restore full virtual machine or individual guest files from 19 common file systems directly from the backup file. Schedule VM backups with PowerShell scripts. Set desired time, lean back and let the script to notify you via email upon completion.  

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

SQL Server engine let you use a Windows account or a SQL Server account to connect to a SQL Server instance. This can be configured immediatly during the SQL Server installation or after in the Server Authentication section in the Server properties …
Ever needed a SQL 2008 Database replicated/mirrored/log shipped on another server but you can't take the downtime inflicted by initial snapshot or disconnect while T-logs are restored or mirror applied? You can use SQL Server Initialize from Backup…
In this video, viewers are given an introduction to using the Windows 10 Snipping Tool, how to quickly locate it when it's needed and also how make it always available with a single click of a mouse button, by pinning it to the Desktop Task Bar. Int…
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.

635 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question