Handling Complex Queries In A Distributed Data Base

Citation

Moore, R. C. (1979). Handling complex queries in a distributed data base. SRI INTERNATIONAL MENLO PARK CA.

Abstract

As part of the continuing development of the LADDER system [1] [2], we have substantially expanded the capabilities of the data base access component that serves as the interface between the natural-language front end of LADDER and the data base management systems on which the data is actually stored. SODA, the new data base access component, goes beyond its predecessor IDA [3], in that it accepts a wider range of queries and accesses multiple DBMSs. This paper is concerned with the first of these areas, and discusses how the expressive power of the query language was increased, how these changes affected query processing in a distributed data base, as well as what are some limitations of and planned extensions to the current system.

↓ Download

Read more from SRI

  • surgeons around a surgical robot

    The SRI research behind today’s surgical robotics

    Intuitive’s da Vinci 5 system represents a major leap in robotic-assisted medicine. It all started at SRI, which continues to advance teleoperation technologies.

  • a collage of digital graphs

    A banner year for quantum

    SRI-managed QED-C’s annual report on quantum trends captures an industry accelerating rapidly from technical promise toward major global impact.

  • ICE Cube containing SRI’s aerogel experiment, photographed prior to launch. Source: Aerospace Applications North America

    An SRI carbon capture experiment launches into space

    By synthesizing carbon-absorbing aerogels in microgravity, SRI research will give us a rare glimpse into how these materials could be radically improved.