The following table list C# data type mapped with SQL Server data type.
| C# Data Type | Mapping to SQL Server Data Type |
|---|---|
| int | int |
| string | nvarchar(Max) |
| decimal | decimal(18,2) |
| float | real |
| byte[] | varbinary(Max) |
| datetime | datetime |
| bool | bit |
| byte | tinyint |
| short | smallint |
| long | bigint |
| double | float |
| char | No mapping |
| sbyte | No mapping (throws exception) |
| object | No mapping |
原文：https://www.cnblogs.com/cxxtreasure/p/13509226.html