Integrated queries to existing bibliographic and structured databases
It is widely accepted that future digital library applications have to be built upon different kinds of database servers to draw upon different forms of data, including bibliographic, text, multimedia, and structured data. In this paper, the problem of integrating existing public bibliographic datab...
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Institutional Knowledge at Singapore Management University
1997
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sg-smu-ink.sis_research-10072018-06-29T00:51:12Z Integrated queries to existing bibliographic and structured databases LIM, Ee Peng LU, Ying It is widely accepted that future digital library applications have to be built upon different kinds of database servers to draw upon different forms of data, including bibliographic, text, multimedia, and structured data. In this paper, the problem of integrating existing public bibliographic databases and structured databases which reside at different locations in the network is addressed. Although bibliographic data is semistructured, its attribute set is often determined by an international standard known as MARC. To unify bibliographic and structured data, the well-known SQL was extended to model bibliographic related attributes and queries. In particular, a new data type was added to model attributes in the bibliographic database. Specialized functions have also been designed that can be used to formulate queries on bibliographic data, as well as queries on both bibliographic and structured data. By combining the SQL extensions with other query language extensions that access general text data, it is believed that a versatile query language layer can be made available for future digital library application development. 1997-01-01T08:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/8 info:doi/10.1006/jnca.1996.0036 https://ink.library.smu.edu.sg/context/sis_research/article/1007/viewcontent/Integrated_queries_to_existing_bibliographic_and_structured_datab.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Databases and Information Systems Numerical Analysis and Scientific Computing |
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Databases and Information Systems Numerical Analysis and Scientific Computing LIM, Ee Peng LU, Ying Integrated queries to existing bibliographic and structured databases |
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It is widely accepted that future digital library applications have to be built upon different kinds of database servers to draw upon different forms of data, including bibliographic, text, multimedia, and structured data. In this paper, the problem of integrating existing public bibliographic databases and structured databases which reside at different locations in the network is addressed. Although bibliographic data is semistructured, its attribute set is often determined by an international standard known as MARC. To unify bibliographic and structured data, the well-known SQL was extended to model bibliographic related attributes and queries. In particular, a new data type was added to model attributes in the bibliographic database. Specialized functions have also been designed that can be used to formulate queries on bibliographic data, as well as queries on both bibliographic and structured data. By combining the SQL extensions with other query language extensions that access general text data, it is believed that a versatile query language layer can be made available for future digital library application development. |
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text |
author |
LIM, Ee Peng LU, Ying |
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LIM, Ee Peng LU, Ying |
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LIM, Ee Peng |
title |
Integrated queries to existing bibliographic and structured databases |
title_short |
Integrated queries to existing bibliographic and structured databases |
title_full |
Integrated queries to existing bibliographic and structured databases |
title_fullStr |
Integrated queries to existing bibliographic and structured databases |
title_full_unstemmed |
Integrated queries to existing bibliographic and structured databases |
title_sort |
integrated queries to existing bibliographic and structured databases |
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Institutional Knowledge at Singapore Management University |
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1997 |
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https://ink.library.smu.edu.sg/sis_research/8 https://ink.library.smu.edu.sg/context/sis_research/article/1007/viewcontent/Integrated_queries_to_existing_bibliographic_and_structured_datab.pdf |
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