Q4

MCQ1 mark, −0.33

In a relational data model, which one of the following statements is $\text{TRUE}?$

(A)

A relation with only two attributes is always in $\text{BCNF}.$

(B)

If all attributes of a relation are prime attributes, then the relation is in $\text{BCNF}.$

(C)

Every relation has at least one non-prime attribute.

(D)

$\text{BCNF}$ decompositions preserve functional dependencies.

Loading…