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Title: Describe the reason why it is acceptable to have null foreign key, but it is unacceptable to have a ... Post by: tlc_71111 on Apr 7, 2019 Describe the reason why it is acceptable to have null foreign key, but it is unacceptable to have a null primary key. Use the concept of entity integrity rule and referential integrity rule in your answer.
Title: Describe the reason why it is acceptable to have null foreign key, but it is unacceptable to have a ... Post by: gdchavis1 on Apr 7, 2019 Content hidden
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