Solved

Purge old records in database

Posted on 2011-09-29
3
262 Views
Last Modified: 2012-05-12
Hi,

We have an old database server that is running out of drive space, we'd like to clean up some of the old data by running a delete statement. However, when the query is running, the transaction log growns rapidly and filled out the available drive space (70GB) and eventualy failed the had to roll back. Is there a work around for this situation?

Thank you.
0
Comment
Question by:lo_oscar
3 Comments
 
LVL 15

Assisted Solution

by:Eyal
Eyal earned 100 total points
ID: 36817915
I have some ideas that may help

1) run small changes and commit
2) change the database recovery mode to full
3) shrink files
0
 
LVL 59

Assisted Solution

by:Kevin Cross
Kevin Cross earned 100 total points
ID: 36817941
What percentage of the table are you trying to DELETE? If it is a significant percent, you may consider transferring the rows you want to keep to a temporary location. Keep in mind, you will need to account for dependencies/relationships with other data; however, all that aside, once you have the 'good' rows copied off, TRUNCATE TABLE {your table name}. Then you can INSERT the 'good' rows back.
0
 
LVL 3

Accepted Solution

by:
kinsey earned 300 total points
ID: 36817945
First backup the database if you can,
Set the Recovery Mode to simple to keep the log from growing too fast.
If you still run out of space Delete the data in smaller subsets
You can CHECKPOINT the database after each delete to truncate the log
re-set the recovery model if it was not simple to begin with.

I assume there is no extra drive available to mov the log file to.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

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

I'm trying, I really am. But I've seen so many wrong approaches involving date(time) boundaries I despair about my inability to explain it. I've seen quite a few recently that define a non-leap year as 364 days, or 366 days and the list goes on. …
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function
Viewers will learn how the fundamental information of how to create a table.

911 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

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now