> 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 Under **Connection Type**, 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). The Basic and Professional licenses limit the number and type of data connectors you can use. * A Basic instance can only use one data connector type, which can be either PostgreSQL or MySQL. After you create your first workspace, any subsequent workspaces must use the same data connector type. * 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 . 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). --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.tonic.ai/app/workspace/workspace-configuration-settings/data-connection-settings/connection-type.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.