Solved

DBCC CHECKDB

Posted on 2014-07-23
5
186 Views
Last Modified: 2014-07-30
1) What are the risks in not running DBCC CHECKDB over your SQL server?

2) What exactly is it checking for? What will the ouput tell you?

3) How often should/do you run it?
0
Comment
Question by:pma111
[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
5 Comments
 
LVL 42

Accepted Solution

by:
pcelba earned 167 total points
ID: 40213999
DBCC CHECKDB is good to use periodically (let say every month) and each time the database needs some maintenance, e.g. slows down etc.

This article answers almost all your questions: http://www.sql-server-pro.com/dbcc-checkdb.html
0
 
LVL 5

Assisted Solution

by:NARANTHIRAN
NARANTHIRAN earned 167 total points
ID: 40214049
1)Database might get corrupted at any time due to hardware problem or some issue.

2) It checks the logical and physical integrity of all the objects in the specified database.And output will provide you status of the database.

3)How frequently you should perform these runs depends on individual businesses and their production environments.
0
 
LVL 3

Author Comment

by:pma111
ID: 40214129
What exactly causes the corruption and how common is it.

What is the overall risk of corruption to your data?
0
 
LVL 3

Assisted Solution

by:alanccw
alanccw earned 166 total points
ID: 40214343
It will check the integration of the MDF database. For example, whether the checksum in the page is correct. You can refer to http://technet.microsoft.com/en-us/library/ms176064.aspx for detailed info
0
 
LVL 42

Expert Comment

by:pcelba
ID: 40215323
What exactly causes the corruption and how common is it.
The data corruption may cause bug in your (or Microsoft's) code, a virus, an attacker, or hardware failure or power failure. You may suppress each of these factors by appropriate security settings and maintenance procedures and also by your hardware conditions. To install SQL database on a standalone computer with one single disk w/o UPS means high risk.

The overall risk depends on the backup frequency primarily. DBCC can signal starting hardware problems. Even broken network card can swap certain bit values which is hard to diagnose and hard to fix in data...

etc. etc.
0

Featured Post

SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

Question has a verified solution.

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

Suggested Solutions

As technology users and professionals, we’re always learning. Our universal interest in advancing our knowledge of the trade is unmatched by most industries. It’s a curiosity that makes sense, given the climate of change. Within that, there lies a…
A Stored Procedure in Microsoft SQL Server is a powerful feature that it can be used to execute the Data Manipulation Language (DML) or Data Definition Language (DDL). Depending on business requirements, a single Stored Procedure can return differe…
Via a live example, show how to extract insert data into a SQL Server database table using the Import/Export option and Bulk Insert.
Viewers will learn how to use the INSERT statement to insert data into their tables. It will also introduce the NULL statement, to show them what happens when no value is giving for any given column.

759 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