1. Computer apparatus for creating a destination database from a given source database, comprising: an extractor for extracting catalog information and/or data from a given source database to create a destination database, the source database having certain data indicated as proprietary data; and a data transformer coupled to the extractor for preventing the proprietary data from being propagated from the source database to the destination database during extraction, such that the destination database is populated by a referentially intact, set of data from the source database that is free of proprietary information.