http://support.microsoft.com/default.aspx?scid=kb;n-us; 320435
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Access Type NameDatabase Data TypeOLE DB Type.NET Framework TypeMember NameTextVarWCharDBTYPE_WSTRSystem.StringOleDbType.VarWCharMemoLongVarWCharDBTYPE_WSTRSystem.StringOleDbType.LongVarWCharNumber: ByteUnsignedTinyIntDBTYPE_UI1System.ByteOleDbType.UnsignedTinyIntYes / NoBooleanDBTYPE_BOOLSystem.BooleanOleDbType.BooleanDate / TimeDateTimeDBTYPE_DATESystem.DateTimeOleDbType.DateCurrencyDecimalDBTYPE_NUMERICSystem.DecimalOleDbType.NumericNumber: DecimalDecimalDBTYPE_NUMERICSystem.DecimalOleDbType.NumericNumber: DoubleDoubleDBTYPE_R8System .DoubleOleDbType.DoubleAutonumber (Replication ID) GUIDDBTYPE_GUIDSystem.GuidOleDbType.GuidNumber: (Replication ID) GUIDDBTYPE_GUIDSystem.GuidOleDbType.GuidAutonumber (Long Integer) IntegerDBTYPE_I4System.Int32OleDbType.IntegerNumber: (Long Integer) IntegerDBTYPE_I4System.Int32OleDbType.IntegerOLE ObjectLongVarBinaryDBTYPE_BYTESArray of System.ByteOleDbType.LongVarBinaryNumber: SingLESINGLEDBTYPE_R4SYSTEM.SINGLEOLDBTYPE.SINGLENUMBER: INTEGERSMALLINTDBTYPE_I2SYS Tem.int16oledbtype.smallintbinaryvarbinary * DBTYPE_BYTESARRAY OF System.byteoledbtype.binaryHyperLinkVarwchardbtype_wstrsystem.stringoledbtype.varwchar