SYMPTOMS
When you are using Microsoft OLE DB provider for Oracle (Msdaora.dll), a SELECT statement containing the DISTINCT keyword causes the BASECOLUMNNAME property of the first field in the recordset to be named "DISTINCT" instead of its real name.
If you attempt to update the recordset, the following error is returned:
Run-time error '-2147217900' (80040e14)'
ORA-00904: invalid column name
This problem does not occur with Microsoft ODBC Driver for Oracle.
RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Data Access Components service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this fix should have the following file attributes or later:
Date Time Version Size File Name Platform
-------------------------------------------------------------
7/22/99 02.12.4322 184KB Msdaora.dll
If Keyset cursors are not required, use the Microsoft ODBC Driver for Oracle instead of the Oracle native provider. If Keyset cursors are required, use the latest Microsoft OLE DB Provider for Oracle.