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Yanka [14]
2 years ago
9

Describe how you would define the relation Brother-in-Law whose tuples have the form (x, y) with x being the brother-in-law of y

. b. Give appropriate relational algebra and SQL expressions that return the relation Brother-in-Law.
Computers and Technology
1 answer:
damaskus [11]2 years ago
8 0

Answer:

The expression is :

π[cd) + π(g,h) ],[π(e,f)+π(a,b)])

We will use foreign key and primary key

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The best way to resolve conflict is to first determine the kind of conflict it is. Hardware conflicts can be resolved by first troubleshooting the hardware and in some instances unplugging the hardware causing the conflict.

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