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WAEC Data Processing 2018 Question 36

Question 36

Database Management

Which of the following statements about relational database model is not correct?

  1. A.A file is sequence of related records
  2. B.A record consists of a row of data containing single value from each column
  3. C.Data in the column of a table are of the same data type
  4. D.Data in the rows of a table are of the same data type
Show the answer and explanation

Answer: D (Data in the rows of a table are of the same data type)

Explanation

Each column holds one data type, but a row mixes types (e.g. a name and a number), so D is false.