Mysql和C#数据类型对应表 ：
| MySql | C# |
| bigint | long |
| bigint unsigned | ulong |
| int | int |
| int unsigned | uint |
| smallint | short |
| smallint unsigned | ushort |
| guid | Guid |
| smalldatetime | DateTime |
| date | DateTime |
| datetime | DateTime |
| timestamp | DateTime |
| float | float |
| double | double |
| numeric | decimal |
| smallmoney | decimal |
| decimal | decimal |
| money | decimal |
| bit | bool |
| bool | bool |
| boolean | bool |
| tinyint | SByte |
| tinyint unsigned | sbyte |
| image | byte[] |
| binary | byte[] |
| blob | byte[] |
| mediumblob | byte[] |
| longblob | byte[] |
| varbinary | byte[] |