DB Integrator: Open Middleware for Data Access

During the last few years, access to heterogeneous data sources and integration of the disparate data has emerged as one of the major areas for growth of database management software. Digital's DB Integrator provides robust data access by supporting heterogeneous query optimization, location transparency, global consistency, resolution of semantic differences, and security checks. A global catalog provides location transparency and operates as an autonomous metadata repository. Global transactions are coordinated through two-phase commit. Highly available horizontal partitioned views support continuous distributed processing in the presence of loss of connectivity. The DB Integrator enables security checks without interfering with the access controls specified in the underlying data sources.