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


 

Empty Data Type Conversions

Convert to type

I1 UI8 BOOL
I2 R4 BSTR
I4 R8 NULL
I8 CY STR
UI1 DECIMAL VARIANT
UI2 NUMERIC WSTR
UI4 DATE  

Unsupported data type conversions

DBDATE, DBTIME, DBTIMESTAMP, BYTES, ERROR, GUID, IDISPATCH, IUNKNOWN