Q. Which of the following will not eliminates the ambiguities of a null value?

  • (A) Define the attribute as required
  • (B) Define subtypes
  • (C) Define supertypes
  • (D) Define each attribute as having an initial value that is recognized as blank
✅ Correct Answer: (C) Define supertypes

Published by Mr. Dubey ⭐ 111.54K Points at 28-Oct-2020 12:36 am in Computer

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