A computer implemented method, data processing system, and computer program product for allowing users with minimal database skills to produce efficient, extended configuration management databases. Input is received from a user to extend a configuration management database, wherein the input includes a generic data type. The generic data type is mapped to a database data type of the configuration management database. An SQL statement is then generated to create the database data type in the configuration management database. Responsive to a successful execution of the SQL statement, the tables in the configuration management database are updated with the database data type to reduce a number of tables created for the database data type.