The .NET Framework type to ADO.NET data type mappings
.NET Framework Type ADO.NET Database Type SQL Data Type String Varchar Varchar() String Nvarchar Nvarchar() String NChar Nchar() String NText NText String Text Text Double BigInt Float DateTime DateTime Datetime DateTime SmallDateTime Smalldatetime Int Int Int Int64 BigInt Bigint Int16 SmallInt smallint Byte[] Binary Binary() Byte[] Image Image Byte[] VarBinary Varbinary() Byte TinyInt Tinyint Bool … Continued