- Article
APPLIES TO: 
2013 2016 2019 Subscription Edition 
SharePoint in Microsoft 365
You can add a content database to a SharePoint Server farm by using the SharePoint Central Administration website or Microsoft PowerShell. The tool that you use depends on the kind of environment that you have deployed, your schedule requirements, and service level agreements that you have made with your organization.
Before you begin
You can add a new content database or attach an existing content database from a backup file.
Before you begin this operation, review the following information about prerequisites:
The user account that is performing this operation must be a member of the Farm Administrators SharePoint group.
If you use Windows authentication to connect to SQL Server, the user account must be a member of the dbcreator fixed server role on the SQL Server instance where the database is to be created.
You can use the procedures that are described in this article to create a new content database and attach it to a web application. If you are using Windows authentication to connect to SQL Server, the user account must also be a member the SQL Server dbcreator fixed server role on the SQL Server instance where the database will be created. If you are using SQL authentication to connect to SQL Server, the SQL authentication account that you specify when you create the content database must have dbcreator permission on the SQL Server instance where the database will be created.
To add a content database to a web application by using Central Administration
Verify that the user account that is performing this operation is a member of the Farm Administrators SharePoint group.
Start Central Administration.
On the SharePoint Central Administration website, click Application Management.
In the Databases section, click Manage content databases.
On the Manage Content Databases page, click Add a content database.
On the Add Content Database page:
Specify a web application for the new database.
Specify a database server to host the new database.
Specify the authentication method that the new database will use and supply an account name and password, if they're necessary.
Important
The account name and password must already exist as a SQL Server login.
Specify the name of the failover database server, if one exists.
Specify the number of top-level sites that can be created before a warning is issued. By default, this is 2,000.
Specify the total number of top-level sites that can be created in the database. By default, this is 5,000.
Click OK.
To add a content database to a web application by using PowerShell
Verify that you have the following memberships:
securityadmin fixed server role on the SQL Server instance.
db_owner fixed database role on all databases that are to be updated.
Administrators group on the server on which you are running the PowerShell cmdlets.
An administrator can use the Add-SPShellAdmin cmdlet to grant permissions to use SharePoint Server cmdlets.
Note
If you do not have permissions, contact your Setup administrator or SQL Server administrator to request permissions. For additional information about PowerShell permissions, see Add-SPShellAdmin.
Open SharePoint Management Shell.
At the PowerShell command prompt, type the following command:
New-SPContentDatabase -Name <ContentDbName> -WebApplication <WebApplicationName>Where:
<ContentDbName> is the name of the content database to create.
<WebApplicationName> is the name of the web application to which the new database is attached.
For more information, see New-SPContentDatabase.
Note
To attach an existing content database to a web application, use the Microsoft PowerShell cmdlet Mount-SPContentDatabase. For more information, see Mount-SPContentDatabase.
Note
We recommend that you use Microsoft PowerShell when performing command-line administrative tasks. The Stsadm command-line tool has been deprecated, but is included to support compatibility with previous product versions.
See also
Concepts
Attach or detach content databases in SharePoint Server
Move site collections between databases in SharePoint Server
