Organization administrators create database groups to enable efficient management of databases. Organization administrators also allocate the resources required to provision, operate, and control database groups.

The databases within a database group are usually related. For example, in Global user management mode, where organizations represent business units in a single enterprise, database groups can group databases for departments within the business unit. In By Organization user management mode, where each organization represents a unique enterprise, database groups can group databases for business units within that enterprise.

Each database group can contain one or more databases. Databases must reside in one database group and cannot be divided among database groups.

Database groups must reside in one organization and cannot be nested.

The following figure shows the relationship between organizations and database groups.

Database Groups in the Data Director Architecture
The cloud contains resource bundles. Resource bundles are assigned to organization. Each oraganization can contain one or more database groups, which use the organization's resources. Each database group can contain one or more databases.