A centralized location in a relational database that stores metadata from disparate metadata sources. It also stores the Metadata Manager warehouse and the models for each metadata source type. Each Metadata Manager application is configured to run with one Metadata Manager repository. You create the Metadata Manager repository when you create the Metadata Manager Service.
When you load metadata for a resource, Metadata Manager loads the metadata into the Metadata Manager warehouse. When you browse or analyze metadata in Metadata Manager, Metadata Manager queries the warehouse to display the metadata.