Each SQL repository is a component of class atg.adapter.gsa.GSARepository. This class implements atg.repository.MutableRepository and atg.repository.content.ContentRepository and extends atg.repository.RepositoryImpl. The Oracle ATG Web Commerce platform includes a sample SQL Repository component with a Nucleus address of /atg/dynamo/service/jdbc/SQLRepository. You can use this component, or create your own. An Oracle ATG Web Commerce instance can have any number of SQL Repository components running at the same time.