HAO Zhongxiao, WEI Haidong. Decompositions for Relational Schema Under Null Value Circumstances Into BCNF With Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 31-35.
Citation:
HAO Zhongxiao, WEI Haidong. Decompositions for Relational Schema Under Null Value Circumstances Into BCNF With Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 31-35.
HAO Zhongxiao, WEI Haidong. Decompositions for Relational Schema Under Null Value Circumstances Into BCNF With Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 31-35.
Citation:
HAO Zhongxiao, WEI Haidong. Decompositions for Relational Schema Under Null Value Circumstances Into BCNF With Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 31-35.
Decompositions for Relational Schema Under Null Value Circumstances Into BCNF With Lossless Joins
The problem of decompositions for incomp lete relational schema under null value Cir- cumstances into (N)BCNF is discussed.Definition of (N)BCNF and algorithm for incomplete relation- al schema into (N)BCNF with lossless joins are given.
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