Which of the following statements are true regarding NULL and IS NOT NULL values?

All Questions › Category: Database › Which of the following statements are true regarding NULL and IS NOT NULL values?
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Anonymous asked 3 years ago

Options:

  1. A table column by default holds NOT NULL values
  2. NULL values are used when you want the records that don’t have a value
  3. NOT NULL values represent missing or unknown data
  4. A table column by default holds NULL values

  5. NULL values are used when you want records to have a value

1 Answers
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Anonymous answered 3 years ago
  1. NULL values are used when you want the records that don’t have a value
  2. A table column by default holds NULL values