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


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.