Microsoft KB Archive/236068

= FIX: Null Parameter for DTS Lookup Causes MMC to Exit =

Article ID: 236068

Article Last Modified on 3/14/2006

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APPLIES TO


 * Microsoft SQL Server 7.0 Standard Edition

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This article was previously published under Q236068



BUG #: 56011 (SQLBUG_70)

BUG #: 55299 (SQLBUG_70)



SYMPTOMS
When a Data Transformation Services (DTS) package contains a lookup as part of the transformation process and a null parameter value is passed to the Execute method of the lookup, the Microsoft Management Console (MMC) exits with an error.

On a Windows NT system, the error is in the following format:

mmc.exe - Application Error

The instruction at "0xXXXXXXXX" referenced memory at 0xXXXXXXXX".

The memory could not be "read".

Where "0xXXXXXXXX", is a memory address.

On a Windows98 system, the error is as follows:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\WINDOWS\MMC.EXE

R6025

-pure virtual function call

These errors appear twice and then the MMC terminates.



WORKAROUND
This problem can be avoided by adding a check for NULL values prior to executing the lookup function as follows: IF isnull(DTSSource("ColumnName")) THEN DTSDestination("ColumnName") = "SomeValue" ELSE DTSDestination("ColumnName") = DTSLookups("LookupName").Execute(DTSSource("ColumnName").Value) END IF



STATUS
Microsoft has confirmed this to be a problem in SQL Server 7.0. This problem has been corrected in U.S. Service Pack 2 for Microsoft SQL Server 7.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

254561 INF: How to Obtain Service Pack 2 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0

For more information, contact your primary support provider.

Additional query words: DTS DTSLookups

Keywords: kbbug kbfix KB236068

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