2 votes 2 votes Find what FD is violated by the Relation R = { } i.e. empty relation a. All FD b. Does not violate FD's c. Cannot say d. None of the Above Databases ace-test-series databases database-normalization + – Arnab Bhadra asked May 30, 2017 • edited Mar 7, 2019 by Rishi yadav Arnab Bhadra 1.2k views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply AnilGoudar commented May 30, 2017 reply Follow Share Let us take by example, let relation be R(A,B) and FD is X -> Y. Now X can take { ∅, X, Y , XY} and Similarly Y can be { ∅, X, Y , XY}. For Empty relation R( ), there is at least one FD which is ∅ -> ∅. Correct me if i am wrong. 0 votes 0 votes Angkit commented May 30, 2017 reply Follow Share b. Does not violate FD's //No relation exist.We can have no example to violating it...? 1 votes 1 votes Please log in or register to add a comment.
Best answer 3 votes 3 votes b)does not violate any fd as there are no attributes so it is in Highest normal form possible . Plz correct me if I am wrong aik138463 answered May 31, 2017 • selected Jun 12, 2017 by Arnab Bhadra aik138463 comment Share Follow See all 2 Comments See all 2 2 Comments reply akankshadewangan24 commented Oct 16, 2017 reply Follow Share What's the correct??? 0 votes 0 votes aik138463 commented Oct 19, 2017 reply Follow Share b is correct 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes .We can have only 1 FD for the empty Relation which determines ∅. ∅ ->∅ . Therefore, it is not violating any FD’s. Option B is correct. Varun Raj Akula answered Mar 6, 2022 Varun Raj Akula comment Share Follow See all 0 reply Please log in or register to add a comment.