HAO Zhongxiao. Completeness of Axiom System of Functional Dependencies Under Null Value CircumstancesJ. Journal of Computer Research and Development, 1991, 28(8): 7-9.
Citation:
HAO Zhongxiao. Completeness of Axiom System of Functional Dependencies Under Null Value CircumstancesJ. Journal of Computer Research and Development, 1991, 28(8): 7-9.
HAO Zhongxiao. Completeness of Axiom System of Functional Dependencies Under Null Value CircumstancesJ. Journal of Computer Research and Development, 1991, 28(8): 7-9.
Citation:
HAO Zhongxiao. Completeness of Axiom System of Functional Dependencies Under Null Value CircumstancesJ. Journal of Computer Research and Development, 1991, 28(8): 7-9.
Completeness of Axiom System of Functional Dependencies Under Null Value Circumstances
On the basis of paper 1,another kind of holding condition pseudo-middle hold is deeply discussed in this paper.Also,we give out the complete proof of axiom system of functional dependencies under null value circumstances.
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