Invalid Object Name Errors When Updating Via Stored Procedure in Different Database

ID: Q238092

The information in this article applies to:
  • Microsoft Data Access Components version 2.1 SP2

SYMPTOMS

When the following conditions occur

  • A SQL Server stored procedure exists in one database, which selects records from a table in a different database


  • The resulting recordset is returned to an application or service


  • That recordset is then passed out-of-process as a disconnected ADO recordset to another client application


  • An attempt is made to update the disconnected recordset


the following error message appears
Invalid object name <object name>
where "object name" is the name of the table you are attempting to update.

If the recordset is never marshaled out-of-process, but is instead delivered directly to the process that is attempting to update it, the UPDATE statement succeeds.


CAUSE

The remote portion of ActiveX Data Objects (ADO) (Msdaprst.dll) is inadvertently overwriting portions of the metadata contained in the recordset. When subsequently constructing the UPDATE statement, this metadata is not available and incorrect syntax is generated.

If you examine the trace logs, you'll see that the correct database.owner.tablename syntax was used while selecting the records, but only the tablename was used while constructing the UPDATE statement.

Because the Connection currently points to the database containing the stored procedure and the table does not exist in that database, "Invalid object name" errors will be returned.


RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Microsoft Data Access service pack that contains this fix.

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 on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp
The English version of this fix should have the following file attributes or later:

   Date      Time    Version      Size    File name     Platform
   -------------------------------------------------------------
   7/22/99           2.12.4321    163KB   msdaprst.dll


STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.


MORE INFORMATION

IMPORTANT: It is not recommended that you install this hotfix on a machine that is currently running MDAC 2.1 SP1 GA (version 2.1.1.3711.11) or earlier. This hotfix should only be used with machines running MDAC 2.1 SP2 GA (version 2.1.2.4202.3).

In order to alleviate memory fragmentation problems, significant code changes were made between MDAC 2.1 SP1 and MDAC 2.1 SP2. While it is not expected that any fatal errors will occur if this hotfix is applied to MDAC 2.1 SP1, doing so is strongly discouraged.

Please see the REFERENCES section below for more information.

Manual Installation

Use the following steps to manually install Msdaprst.dll:
  1. Close or stop any applications or services that are using Msdaprst.dll. This may include Internet Information Server (IIS), Microsoft Transaction Server (MTS), Microsoft Distributed Transaction Coordinator (DTC), and any ADO or OLE DB applications.


  2. Download the hotfix version of Msdaprst.dll into a temporary directory.


  3. Locate and rename the current version of Msdaprst.dll, which should be in the \Program Files\Common files\System\Msadc folder.


  4. Copy the hotfix version of Msdaprst.dll into the same location, and restart your services and applications.


Important Notice for Windows 95 and Windows 98 Users

If you are installing this fix onto a computer running Windows 95 or a computer with the original release of Windows 98, you may need to install the Windows 98 Migration DLL included with this fix. Please carefully read the Migrate_qfe.txt file that is included Migration.exe file included with the download.

REFERENCES

For more information on the memory fragmentation issue referenced above, see the following article in the Microsoft Knowledge Base:
Q230101 Data Queries Sporadically Return Empty Recordsets
To download and install MDAC 2.1 SP2 GA (version 2.1.2.4202.3), please visit the following location:
MDAC 2.1.2.4202.3 (GA)

Additional query words: sql server stored procedure recordset out of process disconnected ADO metadata invalid object name mdaprst.dll hotfix

Keywords : kbDatabase kbRDS kbGrpVCDB kbGrpMDAC kbDSupport kbADO210sp2fix kbMDAC210SP2
Version : WINDOWS:2.1 SP2
Platform : WINDOWS
Issue type : kbbug


Last Reviewed: August 27, 1999
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