[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

What causes SQL MDF and LDF files to have hexadecimal notation in the filename

Posted on 2010-09-14
3
Medium Priority
?
323 Views
Last Modified: 2012-05-10
I support an application that uses Microsoft SQL 2000/2005/2008 databases that are typically named "Attendance" but sometimes are named something else. A customer's name, an abbrevation, or some other reasonably normal name.

The database filenames are typically Attendance.mdf and Attendance_log.ldf.

From time to time, I will see database filenames like Attendance_0xC49EEE467551E04181C1864FE9987BCE.mdf

Sometimes they are quite large, and sometimes, but not always, they are the actual database files as indicated in the "Files" page of the database properties using Microsoft SQL Server Management Studio. Other times, they are not listed as database file in the properties of the database, but as far as I can tell, only exist on the filesystem. Sometimes, I will see both the normally-named files and these hexadecimal files coexisting.

My question is this: What could cause these strange hexadecimal file names?

0
Comment
Question by:cbi1972
3 Comments
 
LVL 17

Assisted Solution

by:Chris Mangus
Chris Mangus earned 100 total points
ID: 33677446
I've never seen such a thing.  I would suspect that either your application is creating them or you have a third party backup client that is causing it.
0
 
LVL 7

Accepted Solution

by:
lundnak earned 100 total points
ID: 33686355
I agree that is likely the application that is creating these database files.  SQLServer does not add files unless it is told to.
0
 

Author Closing Comment

by:cbi1972
ID: 33807970
I believe it is the application doing the unusual behavior.
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

Ever wondered why sometimes your SQL Server is slow or unresponsive with connections spiking up but by the time you go in, all is well? The following article will show you how to install and configure a SQL job that will send you email alerts includ…
This month, Experts Exchange sat down with resident SQL expert, Jim Horn, for an in-depth look into the makings of a successful career in SQL.
Via a live example combined with referencing Books Online, show some of the information that can be extracted from the Catalog Views in SQL Server.
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.
Suggested Courses

873 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