Microsoft KB Archive/916652

= FIX: An access violation may occur when you run a query on a table that has a multicolumn index in SQL Server 2000 =

Article ID: 916652

Article Last Modified on 11/2/2007

-

APPLIES TO


 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Personal Edition

-



Bug: #505 (SQL Hotfix)



''Microsoft distributes Microsoft SQL Server 2000 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2000 fix release.''



SUMMARY
This article describes the following about this hotfix release:
 * The issues that are fixed by this hotfix package
 * The prerequisites for applying the hotfix package
 * Whether you must restart the computer after you apply the hotfix package
 * Whether the hotfix package is replaced by any other hotfix package
 * Whether you must make any registry changes after you apply the hotfix package
 * The files that are contained in the hotfix package



SYMPTOMS
When you run a query in Microsoft SQL Server 2000, an access violation may occur. You experience this problem when the following conditions are true:  A table has a multicolumn index such as Table1(col1, col2). The columns of the table do not accept the value NULL.  The query uses a predicate that resembles the following: Table1.col1   >= @p1 and Table1.col2 > @p2. 

When this problem occurs, the following error message may be logged in the SQL Server Errorlog file:

- BEGIN STACK DUMP:


 * spid 86




 * Exception Address = 00450973


 * Exception Code = c0000005 EXCEPTION_ACCESS_VIOLATION


 * Access Violation occurred reading address 00000000

...

spid86 Stack Signature for the dump is 0x828F490D

spid86 Error: 0, Severity: 19, State: 0

spid86 language_exec: Process 86 generated an access violation. SQL Server is terminating this process..

spid86 Using 'dbghelp.dll' version '4.0.5'

For a list of all publicly released SQL Server 2000 post-service pack hotfixes, see the following article in the Microsoft Knowledge Base:

894905 Cumulative list of the hotfixes that are available for SQL Server 2000 Service Pack 4



CAUSE
This problem occurs because an array is incorrectly initialized when SQL Server performs the index seek process.



RESOLUTION
The installer does not install this hotfix correctly on x64-based systems. This installation issue occurs when the following conditions are true:
 * The system uses the Advanced Micro Devices (AMD) AMD64 processor architecture or the Intel Extended Memory 64 Technology (EM64T) processor architecture.

Note This issue does not occur on systems that use the Intel Itanium processor architecture.
 * The system is running a 64-bit version of the Microsoft Windows Server operating system.
 * The system is running a 32-bit version of SQL Server 2000.

We have corrected this installation issue in later builds of SQL Server 2000, starting with version 8.00.2244. When a customer who is running SQL Server 2000 on an x64-based system requests this hotfix, we will provide a build that includes this hotfix and that can be installed correctly on an x64-based system. The build that we provide will be version 8.00.2244 or a later version.

Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft SQL Server 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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 usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
You must have Microsoft SQL Server 2000 Service Pack 4 (SP4) installed to apply this hotfix.

Restart information
You do not have to restart your computer after you apply this hotfix.

Registry information
You do not have to create any registry keys or modify any registry keys to use any hotfixes that this package contains.

Hotfix file information
This hotfix may not contain all the files that you must have to fully update a product to the latest build. This hotfix contains only the files that you must have to correct the issues that this article lists.

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

SQL Server 2000, Itanium architecture version


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbhotfixserver kbqfe kbpubtypekc KB916652

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.