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Relational design scenario: restrict children rela

做个烂人·2019-07-04 00:09·1 回答·问答

What is Relational Integrity [closed]

时光不老，我们不散·2019-05-13 18:29·3 回答·问答

Relational data modeling for sub types

老娘就宠你·2019-03-22 05:40·3 回答·问答

How to design table with primary key and multivalu

做个烂人·2019-03-06 08:22·2 回答·问答

Unique key with NULLs

何必那么认真·2019-01-22 17:33·8 回答·问答

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