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Category > Computer Science Posted 25 Apr 2017 My Price 3.00

Write the following referential integrity

 

Write the following referential integrity constraints for the battleships database as in Exercise 7.1.4. Use your assumptions about keys from that exercise, and handle all violations by setting the referencing attribute value to NULL.

 a) Every class mentioned in Ships must be mentioned in C lasses.

b) Every battle mentioned in Outcomes must be mentioned in Battles.

c) Every ship mentioned in Outcomes must be mentioned in Ships.

 

 

 
 

Answers

Alpha Geek
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Status NEW Posted 25 Apr 2017 08:04 AM My Price 3.00

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file 1493108528-Answer.docx preview (149 words )
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