DOCUMENT:Q187297  09-JUN-1998  [vbwin]
TITLE   :PRB: Run-time Error 3024 Using SQL and DAO Against Oracle
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:5.0
OPER/SYS:WINDOWS
KEYWORDS:kbcode kberrmsg

======================================================================
---------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual Basic Standard and Enterprise Editions for Windows,
   version 5.0
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SYMPTOMS
========

If you try to run Structured Query Language (SQL) against an Oracle
database through Data Access Objects (DAO) you can encounter the following
error:

   Run-Time Error 3024
   Couldn't find file C:\Program Files\DevStudio\VB\<schema name>.mdb.

This error occurs when you try to specify a schema name in your SQL
statement and you use DAO with Oracle. The <schema name> in the error
message is whatever schema name you specified for the Oracle object you
reference.

RESOLUTION
==========

If you add the dbSQLPassThrough option to the OpenRecordset method, the
sample code in the MORE INFORMATION section of this article runs without
error. You can use brackets, [ ], around the table name in the SQL string
to avoid the error as well. Also, you can use an advanced data access
technology, such as ActiveX Data Objects (ADO), to avoid this error.

STATUS
======

This behavior is by design.

MORE INFORMATION
================

The error message is generated because DAO tries to find an .mdb file in
the local directory that matches the schema name you specified for the
Oracle object in your SQL.

Sample Code
-----------

   sql = "SELECT * FROM scott.emp"
   Set wks = Workspaces(0)
   Set con = wks.OpenDatabase("dseOracle", False, False, _
       & "ODBC;UID=scott;PWD=tiger;")
   Set rss = con.OpenRecordset(sql, dbOpenSnapshot)

This code generates the error because DAO tries to find the scott.mdb file.

REFERENCES
==========

For information on how to acquire ADO and the new Microsoft Oracle ODBC
driver, please see the following article in the Microsoft Knowledge Base:

   Article ID: Q175018
   Title     : HOWTO: Acquire and Install the Microsoft Oracle ODBC
               Driver v2.0

For information on how to use ADO with Oracle, please see the following
article in the Microsoft Knowledge Base:

   Article ID: Q176936
   Title     : INFO: Visual Basic 5.0 Accessing an Oracle Database Using
               ADO

For more information on using DAO with Visual Basic, please see:

   "Hitchhiker's Guide to Visual Basic & SQL Server," William Vaughn, 784
   pages, Microsoft Press, 1997

(c) Microsoft Corporation 1998, All Rights Reserved. Contributions by Sam
Carpenter, Microsoft Corporation

Additional query words: kbDSupport kbdse kbOracle kbDAO350 kbVBp500
======================================================================
Keywords          : kbcode kberrmsg
Version           : WINDOWS:5.0
Platform          : WINDOWS
Issue type        : kbprb

=============================================================================

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