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Management And Implement Of Metadata For Data Warehouse

Posted on:2006-03-11Degree:MasterType:Thesis
Country:ChinaCandidate:M LiFull Text:PDF
GTID:2168360152986588Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
Along with the development of the technology of metadata in data warehouse, the role of metadata in data warehouse is increasing remarkably. Metadata has not only defined the role of data warehouse, clearly shown the location and the content of information in data warehouse, depicted how to take out data and the change rule of data, saved various related information and theme of data warehouse, but also realized the management of data warehouse, such as the modification and trail of data, the description of data synchronous demand, measure of data quality and others functions. The metadata organized according to certain form can facilitate management of data, conversion of data, analysis and the access of data, distribution data share deeply. It becomes the main part of the entire data warehouse. As the basic element that describes the blueprint of warehouse and management of data and knowledge, it will become with the inevitable tendency of data production, stock, update and recycling that describe data with metadata. Though the metadata research of data warehouse gets extensive attention, it does not establish more mature theoretical systems, yet not have a definite definition. Establish the unified metadata model and management specification of data warehouse is the problem that has to been solved in the metadata research field of data warehouse. This paper established and built the model of multidimensional table metadata of data warehouse of body department based on ERP. Based on ERP, we apply object oriented programming tool and relation database tool to research the realization and management of the metadata of data warehouse. Through defining index entity, dimension degree entity, detailed kind of entity and relation entity, leading into the dynamic array technology and passing for relation the object management of binary system in database and with property, algorithm splits to solve the problem of entity dynamic structural modification. We also research the course of excavating aimed at the related rule deeply, based on excavating algorithm and the important role of metadata in data warehouse, this paper spread out the research of metadata in the process of describing and managing.
Keywords/Search Tags:Data Warehouse, Metadata, Management, Implement
PDF Full Text Request
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