A relational database management system (RDBMS) is a program that lets you create, update, and administer a Relational Database. Most commercial RDBMS’s use the Structured Query Language (sql) to access the database.

The leading RDBMS products are Oracle, IBM’s DB2 and Microsoft’s SQL Server. Despite repeated challenges by competing technologies, as well as the claim by some experts that no current RDBMS has fully implemented relational principles, the majority of new corporate databases are still being created and managed with an RDBMS.