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- W2089524892 abstract "Abstract A global schema is a single, connected view of heterogeneous databases. Past research into the problem of global schema design has demonstrated the use of generalization for connecting disjoint schemas. Before generalization can be applied, the common attributes of the local schemas must be identified. We use the term attribute equivalence for the identification of such common attributes. This paper defines four types of attribute equivalences. The distinction between local and global equivalence is explained, and special attention is given to key attributes. We also discuss the placement of locally equivalent attributes in a global schema." @default.
- W2089524892 created "2016-06-24" @default.
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- W2089524892 date "1984-01-01" @default.
- W2089524892 modified "2023-09-24" @default.
- W2089524892 title "Attribute equivalence in global schema design for heterogeneous distributed databases" @default.
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- W2089524892 doi "https://doi.org/10.1016/0306-4379(84)90006-1" @default.
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