Multiple choice

The total number of function dependencies (both trivial and non trivial) that can be formed over relation having degree = n are

  1. $2^n$
  2. $2^{2n}$
  3. $n!$
  4. $2+n!$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If R(A, B) ie n = 2

$\left \{ A, B \\ AB, \phi \right\} \rightarrow \left \{ A, b \\ AB, \phi \right\}$ $2^n \times 2^n = 2^{2n}$

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