ON THE DENSE FAMILIES IN THE RELATIONAL DATAMODEL
In this paper, dense families of relation schemes are introduced. We characterize minimal keys of relation schemes in terms of dense families. Note that, the dense families of database relations were introduced by Jarvinen [6]. We prove that the set of all minimal keys of a relation scheme s= (U, F)...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Gadjah Mada
2017-11-01
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| Series: | ASEAN Journal on Science and Technology for Development |
| Online Access: | http://www.ajstd.org/index.php/ajstd/article/view/162 |