Mapping Data Types
In rowsets and as parameter values, ADO represents data in Microsoft® SQL Server™ 2000 by using the following data types. The ADO enumerated constant, DataTypeEnum, specifies the data type of the Field and Parameter objects.
| SQL Server Data Type | ADO Data Type |
|---|---|
| bigint | adBigInt |
| binary | adBinary |
| bit | adBoolean |
| char | adChar |
| datetime | adDBTimeStamp |
| decimal | adNumeric |
| float | adDouble |
| image | adVarbinary |
| int | adInteger |
| money | adCurrency |
| nchar | adWChar |
| ntext | adWChar |
| numeric | adNumeric |
| nvarchar | adWChar |
| real | adSingle |
| smalldatetime | adTimeStamp |
| smallint | adSmallInt |
| smallmoney | adCurrency |
| sql_variant | adVariant |
| sysname | adWChar |
| text | adChar |
| timestamp | adBinary |
| tinyint | adVarbinary |
| uniqueidentifier | adGUID |
| varbinary | adVarbinary |
| varchar | adChar |
ADO supports consumer-requested data conversions as shown in this illustration.
