Two actions in a transaction schedule are said to be in conflict if and only if:

In a B-tree of order m, the root node must contain at least how many keys (if it is not a leaf node)?

Let P, Q, R and S be the attributes of a relation in a relational schema. Let X → Y indicate functional dependency in the context …

In the context of relational database normalization, which of the following statements is/are true?

Consider a relational database schema with two relations R(P,Q) and S(X,Y). Let E = {<u> | there ∃ v, there ∃ w, <u,v> in R and <v…

Consider a relational database schema with a relation R(A,B,C,D). If {A,B} and {A,C} are the only two candidate keys of the relati…