A '''relational [database]''' is a kind [database] (in fact, probably the most important kind). Special in that the database ''itself'' supports "search with complex query" (can combine conditions with boolean operations, even using intermediate search results for additional queries), which simplifies parallelization and scaling to very large datasets. ** See Also ** [database]: [RDBMS]: [SQL]: [Comparing Tcl database abstraction layers]: ** Resources ** [http://www.thethirdmanifesto.com/%|%The Third Manifesto] by Hugh Darwen and C. J. Date: A proposed foundation for future database systems presented in Databases, Types, and The Relational Model: The Third Manifesto, 3rd edition, Addison-Wesley, 2006 (ISBN: 0-321-39942-0) <> Category Database | Category Concept