There are two functional dependencies with the same set of attributes on the left side of the arrow:A->BCA->BThis can be combined asA->BCNone of the mentionedA->BB->C

Considering relational database, functional dependency between two attributes A and B is denoted bySelect one:a.A → Bb.AB → Rc.B ← Ad.R ← ABClear my choice

Functional dependencies: implicationWe have the attributes: {A, B, C, D, E, F, G}.Consider the following functional dependenciesA, D, F -> EE, F, G -> DA, B -> FE -> BC, G -> D, FC, G -> B, EA, C -> EA -> C, EMark all functional dependencies that are implied by the dependencies above:A, C -> EA, C -> BA, C -> B, DA, C -> CA, C -> C, F

Consider relation R(A,B,C,D,E) with functional dependencies:D -> C, CE -> A, D -> A, AE -> DWhich of the following is a key?CDEABCECE

The following functional dependencies are given:AB -> CD, AF —> D, DE --> F, C —> G, F —› E, G --> AWhich one of the following options is false?{CF}+ = {ACDEFG}{BG}+ = {ABCDG}

In a schema with attributes A, B, C, D and E following set of functional dependencies are givenA → B A → C CD → E B → D E → AWhich of the following functional dependencies is NOT implied by the above set?*AC → BCCD → ACBC → CDBD → CD