SqlInt64.Null Field 
Definition
Important
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public: static initonly System::Data::SqlTypes::SqlInt64 Null;public static readonly System.Data.SqlTypes.SqlInt64 Null; staticval mutable Null : System.Data.SqlTypes.SqlInt64Public Shared ReadOnly Null As SqlInt64 Field Value
Remarks
Null functions as a constant for the SqlInt64 structure. For more information, see Handling Null Values.