16 September 1998 Extending SQL3 for query language of object-relational multimedia databases
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Proceedings Volume 3408, Broadband European Networks and Multimedia Services; (1998); doi: 10.1117/12.321932
Event: SYBEN-Broadband European Networks and Electronic Image Capture and Publishing, 1998, Zurich, Switzerland
Abstract
We have been designing and implementing an object-relational multimedia database. A new data model was first developed, which represents various types of media entities, and temporal/logical relationships among these entities. Thereafter, a three-layer object-relational database infrastructure was proposed in our project, in order to support the proposed data model. In this paper, we concentrate on the search and query mechanisms designated for our database infrastructure. In particular, we discuss a new query language, which is developed as a multimedia extension of SQL3. This query language provides a greater expressive power, not only on simple/complex media entities, but also on various relationships among different entities. Consequently, it supports both content-based and structure-based queries. We are currently implementing the query language in our object- relational multimedia database prototype system based on the Illustrar. The fundamental structure of our query language, as well as main features of Object Manager and Query Manager of our prototype system, are also presented in the paper.
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Michael Junke Hu, Miao Chunyan, "Extending SQL3 for query language of object-relational multimedia databases", Proc. SPIE 3408, Broadband European Networks and Multimedia Services, (16 September 1998); doi: 10.1117/12.321932; https://doi.org/10.1117/12.321932
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KEYWORDS
Multimedia

Databases

Data modeling

Composites

Prototyping

Video

Standards development

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