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Recent questions tagged multivalued-dependency-4nf

0 votes
1 answer
Multi Valued Dependencies(MVD) satisfied by relation R(A,B,C) with tuples: (a1,b1,c1),(a1,b1.c2), (a2,b1,c1), (a2,b1,c3) A⇢⇢B B⇢⇢A, BC⇢⇢A, B⇢⇢AC
asked Jul 4, 2016 in Databases gate_forum 660 views
0 votes
0 answers
A.dep-->>job B.dep-->>part C.both a and b D.none of these
asked May 6, 2016 in Databases Sourabh Kumar 219 views
1 vote
0 answers
How to find all mvd's in this table.i know mvd defination according to that we let t1,t2,t3,t4 in table but in this table ,which tuple we take t1,t2,t3,t4 .and how defination of.mvd constraints satisfy
asked May 6, 2016 in Databases Sourabh Kumar 165 views
35 votes
3 answers
Consider the following implications relating to functional and multivalued dependencies given below, which may or may not be correct. if $A \rightarrow \rightarrow B$ and $A \rightarrow \rightarrow C$ then $A \rightarrow \rightarrow BC$ if $A \rightarrow B$ and $A \rightarrow C$ then ... $A \rightarrow \rightarrow C$ Exactly how many of the above implications are valid? $0$ $1$ $2$ $3$
asked Oct 30, 2014 in Databases Ishrat Jahan 6.1k views
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