SQL SERVER与C#的数据类型对应表
http://weikaishio.blog.hexun.com/26164448_d.html
| 序号 | 类别 | SQLServer | C Sharp | 备注 |
| 1 | 整数 | bit | Boolean | True转换为1False转换为0 |
| 2 | tinyint | Byte | C Sharp 数据类型都位于System命名空间 | |
| 3 | smallint | Int16 | ||
| 4 | int | Int32 | ||
| 5 | bigint | Int64 | ||
| 6 | smallmoney | Decimal | ||
| 7 | money | Decimal | ||
| 8 | numeric | Decimal | ||
| 9 | decimal | Decimal | ||
| 10 | 浮点数 | float | Double | |
| 11 | real | Single | ||
| 12 | 日期和时间 | smalldatetime | DateTime | |
| 13 | datetime | DateTime | ||
| 14 | timestamp | DateTime | ||
| 15 | 字符串 | char | String | |
| 16 | text | String | ||
| 17 | varchar | String | ||
| 18 | nchar | String | ||
| 19 | ntext | String | ||
| 20 | nvarchar | String | ||
| 21 | 二进制数据 | binary | Byte[] | |
| 22 | varbinary | Byte[] | ||
| 23 | image | Byte[] | ||
| 24 | 其他 | uniqueidentifier | Guid | |
| 25 | Variant | Object |
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