Dataphor is a truly relational database management system, unlike SQL which actually inherently violates several principles of the relational database management model. It is considered a virtual, or federated DBMS. A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by Edgar F. Codd. ... Wikibooks has more about this subject: SQL Structured Query Language (SQL) is the most popular computer language used to create, modify and retrieve data from relational database management systems. ...

Dataphor was created by Alphora, a division of ERP systems developer Softwise. It is the first truly RDBMS since IBM BS12. Its D4 language is based on the principles of Christopher J DATE’s and Hugh DARWEN’s Tutorial D, but with a Pascal-like syntax style. It had to incorporate SQL NULLs due to its federated nature that relies on SQL DBMSs. ERP is a TLA (three-letter abbreviation) that may stand for: Early redemption penalty Early retirement plan Earth rotation parameters Effective radiated power Effective refractory period Ejército Revolucionario del Pueblo (Argentina) Electronic road pricing Emergency response plan Emergency response program Employee retirement plan Enterprise resource planning Environmental resource permit... Business System 12, or simply BS12, was one of was the first fully relational database management systems, designed and implemented by IBMs UK Bureau Service subsidiary. ... Categories: Wikipedia cleanup | Substubs ... Null is usually that which has no value (nothingness) or no effect. ...

Pragmatically speaking, Dataphor allows one to derive a quite complete and useful user interface application for database manipulation.

External links

• Alphora's Website