MDAC 2.5 SDK - OLE DB Providers
OLE DB Provider for ODBC

GUID Data Type Conversions

Convert to type

Empty

NULL

STR

BSTR

WSTR

Unsupported data type conversions

I1, I2, I4, I8, UI1, UI2, UI4, UI8, R4, R8, CY, NUMERIC, DECIMAL, DBTIME, DATE, DBDATE, DBTIMESTAMP, BOOL, BYTES, ERROR, IDISPATCH, IUNKNOWN, VARIANT