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Rebuild System Databases In SQL Server 2008

This article describes how to rebuild system databases in the SQL server.

Software Requirement

Before reading this article, ensure that the SQL server (any version) is installed on your machine.

Prerequisite Knowledge

Before diving into the article, ensure you are familiar with the following topics: -

What are system databases?
What is the purpose of the system databases?

What Does Rebuild Do?

Rebuild sets the system databases to its default state. For example, if you have added 3 databases then after rebuild all three databases gets deleted. So, it is a good practice to take back up before rebuilding system databases.

Scenarios Of Rebuilding Database

In real-time scenarios, system databases are rebuilt when they become corrupted.

Steps

To begin with open the command prompt. Go to the following path.

C:\Program Files\Microsoft SQL Server\150\Setup Bootstrap\SQL2019

Execute the following query.

setup.exe  /QUIET /ACTION=REBUILDDATABASE /INSTANCENAME=sqlexpress2k8r2  /SQLSYSADMINACCOUNTS= my_domain\admin_user_name /SAPWD=login_password

In the above code: -

Option	Description
/QUIET	It means that the setup is run without any user interface
/ACTION=REBUILDDATABASE	It means system databases are recreated
/INSTANCENAME=sqlexpress2k8r2	specifies the instance name of the database
SQLSYSADMINACCOUNTS= my_domain\admin_user_name	specifies the domain name and admin user name of the system
/SAPWD=login_password	specifies the login password of the admin user

Log In Summary.Txt File

"Summary.txt" is the log file stored at "C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log location". If the rebuild executes successfully the log is stored in this file in this way.

Overall summary:

  Final result:                  Passed
  Exit code (Decimal):      0
  Exit message:               Passed
  Start time:                    2012-06-29 17:20:19
  End time:                      2012-06-29 17:23:37
  Requested action:          RebuildDatabase

Posted By -	Karan Gupta

Posted On -	Tuesday, July 3, 2012

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