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- W2369940740 abstract "Temporal information is important to management decision.Different requirements result to different presentation methods of temporal information.With a deeper development of database and information technology,the need of simple temporal data model be-comes more urgent in order to give advantages to temporal information expressing and processing.The BCDM model and the idea of its temporal information expressing is introduced,then the existing problems of transaction time and valid time expressing with regard to query optimazation is discussed.Finally an effective method of simplifying temporal information in BCDM is put forward.By this method,not only can the existing temporal information be effectively maintained,but also can valid time expressing be simplifed largely,which provides a good basis to query optimazaion of temporal data." @default.
- W2369940740 created "2016-06-24" @default.
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- W2369940740 date "2008-01-01" @default.
- W2369940740 modified "2023-09-27" @default.
- W2369940740 title "Effective method of simplifying temporal information in BCDM" @default.
- W2369940740 hasPublicationYear "2008" @default.
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