Feature | Ingres Star | Open TP System |
Typical application | Distributed decision support applications | Distributed online transaction processing (OLTP) applications |
Scope and nature of typical application | Enterprise-wide | Mission-critical |
Transaction commitment protocol | two-phase commit across multiple Ingres databases | Heterogeneous two-phase commit coordinated by external transaction managers |
Application programming interface | SQL | SQL plus TP system application programmer interface (API) |