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  • A functional dependency x- > y is trivial, if ________...
Multiple choice

A functional dependency x- > y is trivial, if _______________.

  1. y is a subset of x

  2. y is a proper subset of x

  3. x is a subset of y

  4. x is a proper subset of y

  5. only 1 and 2

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For every value of y, there is an x. 

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