BUG: Implicit Conversion with Aggregate Functions Causes Overflow

ID: Q225143

The information in this article applies to:
BUG #: 18642 (SQLBUG_65)

SYMPTOMS

An arithmetic overflow occurs when an implicit conversion performs in a query that contains two or more aggregate functions.


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 SQL Server 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: 

   Date         Time    Version    Size        File name     Platform
   ------------------------------------------------------------------
   03/30/1999   15:28   6.50.431   2,881,891   sql431i.exe   (x86)
   03/30/1999   15:34   6.50.431   4,715,853   sql431a.exe   (alpha)
NOTE: Due to file dependencies, the most recent hotfix or feature can contain either previous files or additional files.



NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, and if it is determined that you only require the fix you requested, no fee will be charged. However, if you request additional technical support, and if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support, you may be charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:
Q154871 Determining If You Are Eligible for No-Charge Technical Support


WORKAROUND

To make sure that an implicit conversion with aggregate functions does not cause an arithmetic overflow try the following:


Perform an explicit conversion.

- or -

Execute the aggregate functions outside of the conversion query.


STATUS

Microsoft has confirmed this to be a problem in SQL Server version 6.5.

Additional query words: 


Keywords          : kbSQLServ650sp5bug 
Version           : winnt:6.5 Service Pack 5 and 5a
Platform          : winnt 
Issue type        : kbbug

Last Reviewed: July 2, 1999