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An attribute is a(n):

  • A.column of a table.
  • B.
    two dimensional table.
  • C.row of a table.
  • D.key of a table.

Answer: A

Correct answer: column of a table.

An attribute is a column, corresponding to a field in file-processing terms, and it draws its values from a single domain. A row is a tuple, and the whole two-dimensional structure is the relation. A key is a role that one or more attributes play rather than a structural element in its own right.

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