Can a surrogate key be null?

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  1. #ensures
  2. #every
  3. #surrogate
  4. #primary
  5. #unique
  6. #mysql
  7. #column
  8. #value
  9. #sequence
  10. #oracle
  11. #values
  12. #designated
  13. #integer
  14. #incrementing
  15. #identity
  16. #common
  17. #increment
  18. #server
  19. #constraint