HAO Zhongxiao. Decompositions for Relational Schema Under Null Value Circumstances Into 3NF With preservation of NFD's and Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 24-30.
Citation:
HAO Zhongxiao. Decompositions for Relational Schema Under Null Value Circumstances Into 3NF With preservation of NFD's and Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 24-30.
HAO Zhongxiao. Decompositions for Relational Schema Under Null Value Circumstances Into 3NF With preservation of NFD's and Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 24-30.
Citation:
HAO Zhongxiao. Decompositions for Relational Schema Under Null Value Circumstances Into 3NF With preservation of NFD's and Lossless JoinsJ. Journal of Computer Research and Development, 1991, 28(8): 24-30.
Decompositions for Relational Schema Under Null Value Circumstances Into 3NF With preservation of NFD's and Lossless Joins
The problem of decompositions to (N)3NF is discussed in this paper.The full and essential conditions of the compositions are given.In point of the special property of incomplete relational schema,the decomposition algorithm with preservation of NFD's and lossless joins is given.