Ingres Corp, Alameda, California claims to be the first company to offer a heterogeneous distributed database management system that automatically ensures information at multiple sites remains consistent after being updated by any type of transaction automatic two-phase commit in other words. The company says the feature is built into the latest release of Ingres/Star and enables programmers to create more flexible distributed database applications. Under Ingres/Star, any transaction can update information stored at any site, and without modification, can update information stored at a single site or at multiple sites. It also performs automatic recovery management to ensure related information stays consistent in the event of database, network or computer failure. The company says that where automatic two-phase commit is built directly into Ingres/Star, other implementations currently on the market require programmers to anticipate all transaction requests users may submit to the system in advance, and manually recover databases when they fail during or after transactions commit. The feature is contained in Release 6.3 of Ingres/Star. No prices given.
