1. A system, comprising: a processor; a computer-readable storage medium; a metadata repository configured to store structure metadata, wherein the structure metadata defines one or more structures for storing data in both: a) a relational database, and b) a multidimensional database; metadata generation logic configured to automatically generate first structure metadata that describes the first structure in response to receiving a first request to generate a first structure for storing data; wherein the metadata repository is further configured to store the first metadata.