Aggregation query model for OODBMS

Johanna Wenny Rahayu, David Taniar, Xiaoyan Lu

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    Query language and querying facilities are critical factors for wide acceptance of Object-Oriented Database Management Systems (OODBMS) in the market. In this paper, we focus on query model on an aggregation hierarchy. We call this query "Aggregation Query". Query on an aggregation hierarchy is unique and differs from general query on association relationships. The latter is often known as path expression query. The difference is analogous to the distinction between association and aggregation in object modelling. In our proposal, we present three important elements of aggregation query, particularly (i) aggregation query hierarchy, (ii) shorthand path expression for aggregation query utility, and (iii) retrieving aggregation tree. Whilst the first element above is adopted from path expression queries, the second element is an extension to general path expression query, and the third element is unique to aggregation, as aggregation resembles a Part-Of relationship, which is more specialized than association relationships.
    Original languageEnglish
    Title of host publication40th International Conference on Technology of Object-Oriented Languages and Systems
    Subtitle of host publicationTOOLS Pacific 2002
    PublisherAssociation for Computing Machinery (ACM)
    Number of pages8
    ISBN (Print)9780909925888
    Publication statusPublished - 1 Feb 2002
    EventInternational Conference on Tools Pacific 2002: Objects for internet, mobile and embedded applications - Sydney, Australia
    Duration: 1 Feb 20021 Feb 2002
    Conference number: 40th

    Publication series

    NameConferences in Research and Practice in Information Technology
    ISSN (Print)1445-1336


    ConferenceInternational Conference on Tools Pacific 2002
    Abbreviated titleTOOLS-PACIFIC 2002
    Internet address

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