This article is just a reference of SQL Data Types to C# Data Types.
| SQL Server data type | CLR data type (SQL Server) | CLR data type (.NET Framework) |
| varbinary | SqlBytes, SqlBinary | Byte[] |
| binary | SqlBytes, SqlBinary | Byte[] |
| varbinary(1), binary(1) | SqlBytes, SqlBinary | byte, Byte[] |
| image | None | None |
| varchar | None | None |
| char | None | None |
| nvarchar(1), nchar(1) | SqlChars, SqlString | Char, String, Char[] |
| nvarchar | SqlChars, SqlString | String, Char[] |
| nchar | SqlChars, SqlString | String, Char[] |
| text | None | None |
| ntext | None | None |
| uniqueidentifier | SqlGuid | Guid |
| rowversion | None | Byte[] |
| bit | SqlBoolean | Boolean |
| tinyint | SqlByte | Byte |
| smallint | SqlInt16 | Int16 |
| int | SqlInt32 | Int32 |
| bigint | SqlInt64 | Int64 |
| smallmoney | SqlMoney | Decimal |
| money | SqlMoney | Decimal |
| numeric | SqlDecimal | Decimal |
| decimal | SqlDecimal | Decimal |
| real | SqlSingle | Single |
| float | SqlDouble | Double |
| smalldatetime | SqlDateTime | DateTime |
| datetime | SqlDateTime | DateTime |
| sql_variant | None | Object |
| User-defined type(UDT) | user-defined type | None |
| table | None | None |
| cursor | None | None |
| timestamp | None | None |
| xml | SqlXml | None |
This is good
But you should update this information to also specify the min and max size supported by each data type.
This is nice. However, it could be better. For example, when actually writing C# code, instead of “Int64” one should use “long”, by convention and best-practice. That is what Microsoft has recommended. The matrix ought to reflect such conventions. Regardless, it is a decent matrix. Thanks. — Mark Kamoski
That’s a really useful table 🙂
But I think the varbinary(1), binary(1) for storing one byte is wrong. I tested it and was not able to store, for example, 0xAA into a varbinary(1), binary(1).
.net grid provides broad capabilities of working with data such as arbitrary class objects, row arrays, objects implementing IList or IDictionary interfaces and objects with variable number of fields dapfor. com
Muchas gracias espero este correcta las equivalencias.. si thanks so much .. I hope you’re right