summary: Learn how Silverstripe CMS manages database tables, ways to query your database and how to publish data.
introduction: This guide will cover how to create and manipulate data within Silverstripe CMS and how to use the ORM (Object Relational Model) to query data.
In Silverstripe CMS, application data will be represented by a [DataObject](api:SilverStripe\ORM\DataObject) class. A `DataObject` subclass defines the