> For the complete documentation index, see [llms.txt](https://docs.tonic.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tonic.ai/app/workspace/workspace-configuration-settings/data-connection-settings/connection-type.md).

# Connection type

When you create a workspace, under **Workspace Details**, from the **Connection Type** dropdown list, select the type of data connector to use for the workspace data.

You cannot change the connection type on a [child workspace](/app/workspace/managing-workspaces/workspaces-inheritance.md).

<figure><img src="https://3378426797-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LSQCLFQ4bslJ-HYc8c3%2Fuploads%2FcQRVpRHWuuu5HfAWQNIG%2FWorkspaceNewConnectionType.png?alt=media&amp;token=9dd1be06-4fb4-4de8-a933-a5522ff10734" alt=""><figcaption><p>Connection Type dropdown list for a new workspace</p></figcaption></figure>

The Professional license limits the number and type of data connectors you can use. A Professional instance can use up two different data connector types, which can be any type other than Oracle or Db2 for LUW. After you create workspaces that use two different data connector types, any subsequent workspaces must use one of those data connector types.

If the database that you want to connect to isn't in the list, or you want to have different database types for your source and destination database, contact <support@tonic.ai>.

When you select a connector type, Structural updates the view to display the connection fields used for that connector type. The specific fields vary based on the [connector type](/app/setting-up-your-database/data-connector-summary.md).

After you save a new workspace, you cannot change the workspace connection type.

<figure><img src="https://3378426797-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LSQCLFQ4bslJ-HYc8c3%2Fuploads%2FLCFMT3ODOPP2IuCYLZAI%2FWorkspaceConnectionTypeReadOnly.png?alt=media&amp;token=00b77495-dde7-4fea-bf7d-c5736e4a75fe" alt=""><figcaption><p>Locked connection type value on a saved workspace</p></figcaption></figure>


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