In a relation,the sequence of columns can be interchanged without changing the meaning or use of the ________.
A)Relation
B)Attribute
C)Row
D)Primary key

Question

Quizplus · Accepted Answer

In a relation, columns represent attributes of the entity being modeled. The order of attributes can be changed without affecting the meaning or use of the relation. Therefore, option A (Relation) is the correct answer. Option B (Attribute) is incorrect because if the sequence of attributes is changed, it may change the interpretation. Option C (Row) is incorrect because it refers to the data values in a relation, not the sequence of columns. Option D (Primary Key) is incorrect because it is an attribute that uniquely identifies each row in a relation, and changing the sequence of columns will not affect the primary key.

In a Relation,the Sequence of Columns Can Be Interchanged Without