Which of the foolowing statements about relational model is not correct?

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Data Processing WAEC 2018

Which of the foolowing statements about relational model is not correct?

  • A file is a sequence of related records
  • A record consist of a row of data containing single value from each column
  • Data in the column of a table are of the same data type
  • Data in the rows of a table are of the same data type checkmark

The correct answer is: D

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