Privileges
Initially, users have no access to data in a metastore. Azure Databricks account admins, workspace admins, and metastore admins have default privileges for managing Unity Catalog.
All securable objects in Unity Catalog have an owner. Object owners have all privileges on that object, including the ability to grant privileges to other principals.
Note
Privileges can be granted by either a metastore admin, the owner of an object, or the owner of the catalog or schema that contains the object. Account admins can also grant privileges directly on a metastore.