METU Interoperable Database system

Dogac A., Halici U., Kilic E., Ozhan G., Ozcan F., Nural S., ...More

Proceedings of the 1996 ACM SIGMOD International Conference on Management of Data, Montreal, Canada, 4 - 06 June 1996, vol.25, pp.552 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 25
  • Doi Number: 10.1145/235968.280358
  • City: Montreal
  • Country: Canada
  • Page Numbers: pp.552
  • Middle East Technical University Affiliated: Yes


A multidatabase system based on OMG's distributed object management architecture and named Middle East Technical University (METU) INteroperable Database management system (MIND) is presented. MIND employs a dynamic query optimizer. After a query is decomposed, the global subsequeries are sent to the involved Local Database Agent (LDA) objects. The optimization process starts after the first partial result from a LDA object becomes available. For optimizing the intersite operations among these partial results, a statistical inferencing mechanism is used. Intersite operations are performed by Query Processor (QP) objects. There could be as many QP objects running in parallel as necessary.