Change SQLSERVER Instance name

Posted on 2014-12-02
Last Modified: 2015-05-23
Hi I have Cloned Windows VM Server: A and Named as Server: B, Later I changed the OS Hostname from A to B.

Now I required to rename the SQL Server instance name from A to B.

I did rename by using sp_dropserver & sp_addserver, but could not login after rename from A to B.

Need help to rename the SQL Server instance from A to B
Question by:nssasikumar
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
  • 3
  • 2
LVL 25

Expert Comment

ID: 40476681
You can rename host name of instance like follows:
sp_dropserver '<oldservername>'

sp_addserver '<newservername>', local

Now restart the SQL Server related services. Then, run @@servername to verify if the new name has been updated.
select @@servername
LVL 50

Expert Comment

by:Vitor Montalvão
ID: 40478033
How did you rename the SQL Server instance and what's the error now?

Author Comment

ID: 40783115
I have tried the Steps, mentioned above but faced some issues, So I fall back to Old Hostname
Free eBook: Backup on AWS

Everything you need to know about backup and disaster recovery with AWS, for FREE!

LVL 50

Expert Comment

by:Vitor Montalvão
ID: 40783125
If it's a default MSSQL instance you shouldn't have any kind of problem renaming it.
But if it's a named instance you just can't. You'll need to uninstall the old instance and install a new one.

Author Comment

ID: 40783146
It means after Host renaming at OS level, the SQLServer Default Instance will be auto renamed as Per New OS hostname?
LVL 50

Accepted Solution

Vitor Montalvão earned 500 total points
ID: 40783171
SQLServer Default Instance will be auto renamed
No auto renamed. Default instances aren't named so you just need to drop the entry from the old server and add a new entry for the new server:
sp_dropserver '<oldservername>'

 sp_addserver '<newservername>', local

Open in new window

Don't forget to restart the SQL Server so it can use the new server name.

Featured Post

How our DevOps Teams Maximize Uptime

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us. Read the use case whitepaper.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Moving away from Access 2003 adp files 4 48
Failover Cluster Primary Nodes Current Vote = 0 5 39
Migrate SQL 2005 DB to SQL 2016 4 32
SQL Server Pivot 5 44
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…
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 backup a database, simulate a failure backup the tail of the database transaction log and perform the restore.
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.

752 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