Interviews - C# Corner

Abhishek Kumar
Can a Unique key accept more than one Null Value ?
By Abhishek Kumar in .NET onSep 14 2015
  • shreeniwas kushwah
    Feb, 2018 22

    Yes, Unique Key can be accepted more than one NULL value. Create NONCLUSTERED UNIQUE Index on the Column with WHERE Filter Column_Name is not NULL.

    • 0
  • Vishal Jadav
    Aug, 2016 8

    No. Only one Null is allowed for unique key constraint.

    • 0
  • Amol Sontakke
    May, 2016 6

    Only One Null Value

    • 0

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