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Question:  Define Unique Key in SQL Server

Answer: How to define unique key in table? Is it possible to define one primary key and one unique key in a single table?


September 09, 2008 08:18:19 #2
 ashwani.kumar   Member Since: September 2008    Total Comments: 2 
RE: Define Unique Key in SQL Server
 
No it is not possible bcz primery key does not allowed null value, but in unique key one null value allowed
     

 

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