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A relation has which of the following properties?

  • A.Each row is not unique.
  • B.Attributes can have the same name within a given table.
  • C.
    Each relation has a unique name.
  • D.The order of the columns is significant.

Answer: C

Correct answer: Each relation has a unique name.

Unique naming is a genuine property. The other three are each stated backwards: every row must be unique, no two attributes within a relation may share a name, and the order of columns is not significant - a relation is a set of tuples over named attributes rather than an ordered table.

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