Microsoft KB Archive/810163

= FIX: An Access Violation Occurs if an sp_cursoropen Call References a Parameter That Is Not Defined =

Article ID: 810163

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Personal Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Workgroup Edition
 * Microsoft SQL Server 2000 Desktop Engine (Windows)
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Enterprise Edition 64-bit

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BUG #: 363090 (SHILOH_BUGS)



SYMPTOMS
If an sp_cursoropen call references a parameter that is not defined, the server raises a handled access violation in CExecParam::Init. The query may look similar to the following query: exec sp_cursoropen @P1 output, N'SELECT * FROM tbl WHERE somecolumn = @P5', @P2 output, @P3 output, @P4 output Note The query includes an @P5 parameter, but the type and value of the parameter are not provided.

The following stack is similar to the stack that is recorded in the SQL Server error log: * Short Stack Dump Note This stack is from Sqlservr.exe build 534.
 * 005DBD40 Module(sqlservr+001DBD40) (CExecParam::Init+00000006)
 * 005DC162 Module(sqlservr+001DC162) (CParamExchange::InsertParam+0000001B)
 * 00584715 Module(sqlservr+00184715) (CSPCursorOpenParams::CreateExecSqlPxp+0000016C)
 * 00581FD0 Module(sqlservr+00181FD0) (SPCursor::Open+000000C6)
 * 005E4CDE Module(sqlservr+001E4CDE) (CSpecProc::ExecuteSpecial+00000080)
 * 005E49B6 Module(sqlservr+001E49B6) (CXProc::Execute+000000A3)
 * 005E6BB4 Module(sqlservr+001E6BB4) (CSQLSource::Execute+0000037B)
 * 00429DD3 Module(sqlservr+00029DD3) (execrpc+000004CB)
 * 0042904D Module(sqlservr+0002904D) (execute_rpc+00000019)
 * 00410FCE Module(sqlservr+00010FCE) (process_commands+00000210)
 * 41073379 Module(UMS+00003379) (ProcessWorkRequests+0000024A)
 * 41073071 Module(UMS+00003071) (ThreadStartRoutine+000000BD)
 * 7800C9EB Module(MSVCRT+0000C9EB) (beginthread+000000CE)
 * 77E96523 Module(KERNEL32+00016523) (TlsSetValue+00000115)



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

290211 How to obtain the latest SQL Server 2000 service pack

Hotfix information
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 tool in Control Panel.

The following fix is hotfix build 701. It can only be applied to SQL Server 2000 Service Pack 2 (SP2).   Date         Time   Version              Size  File name ---  30-Aug-2002  21:08                    786,432  Distmdl.ldf 30-Aug-2002 21:08                  2,359,296  Distmdl.mdf 09-Oct-2002 00:54                        544  Drop_repl_hotfix.sql 02-Jul-2002 15:35  2000.80.650.0     107,088  Impprov.dll 19-Jul-2002 16:56                    774,516  Instdist.sql 08-Oct-2002 23:56                     12,615  Inst_repl_hotfix.sql 20-Aug-2002 16:24  2000.80.679.0     111,172  Logread.exe 07-Apr-2002 02:08  2000.80.606.0      62,024  Odsole70.dll 03-Jan-2002 01:59                     18,185  Qfe356326.sql 20-Aug-2002 16:47  2000.80.679.0     135,748  Qrdrsvc.exe 26-Aug-2002 22:49  2000.80.679.0     406,088  Rdistcom.dll 04-Oct-2001 01:36                    437,302  Replcom.sql 20-Aug-2002 16:33  2000.80.679.0     152,136  Replmerg.exe 19-Nov-2001 20:36                    993,945  Replmerg.sql 05-Nov-2002 23:48  2000.80.700.0     221,768  Replprov.dll 04-Oct-2001 01:36                    986,906  Replsys.sql 04-Oct-2001 01:36                    881,228  Repltran.sql 26-Aug-2002 22:49  2000.80.679.0     283,208  Rinitcom.dll 16-Sep-2002 22:31                    390,045  Securityhotfix.sql 26-Aug-2002 22:49  2000.80.679.0      28,672  Sqlagent.dll 26-Aug-2002 18:39  2000.80.679.0     311,872  Sqlagent.exe 28-Aug-2002 16:32  2000.80.679.0      49,152  Sqlagent.rll 26-Aug-2002 22:49  2000.80.679.0      53,824  Sqlcmdss.dll 28-Aug-2002 16:40  2000.80.679.0      12,288  Sqlcmdss.rll 24-Oct-2002 17:37  2000.80.695.0     176,696  Sqlmap70.dll 08-Nov-2002 00:49  2000.80.701.0   7,471,188  Sqlservr.exe 01-Nov-2002 18:56  2000.80.698.0      45,644  Sqlvdi.dll 01-Nov-2002 18:00  2000.80.697.0      82,492  Ssnetlib.dll 07-Apr-2002 02:08  2000.80.606.0      70,208  Xplog70.dll 07-Apr-2002 02:08  2000.80.606.0      53,828  Xpqueue.dll 07-Apr-2002 02:08  2000.80.606.0     156,228  Xprepl.dll 12-Jul-2002 01:00  2000.80.658.0     279,104  Xpstar.dll 16-Sep-2002 23:12  2000.80.686.0      98,872  Xpweb70.dll

A separate fix (build 8.00.0765) that addresses this problem in SQL Server 2000 SP3 is available.   Date         Time   Version              Size  File name ---  08-Feb-2003  05:43                    786,432  Distmdl.ldf 08-Feb-2003 05:43                  2,359,296  Distmdl.mdf 30-Jan-2003 01:55                        180  Drop_repl_hotfix.sql 01-Feb-2003 00:32  2000.80.763.0   1,557,052  Dtsui.dll 30-Jan-2003 05:18                    746,470  Instdist.sql 30-Jan-2003 01:55                      1,402  Inst_repl_hotfix.sql 08-Feb-2003 06:40  2000.80.765.0      90,692  Msgprox.dll 08-Feb-2003 03:53                  1,065,895  Replmerg.sql 08-Feb-2003 06:40  2000.80.765.0     221,768  Replprov.dll 08-Feb-2003 06:40  2000.80.765.0     307,784  Replrec.dll 30-Jan-2003 05:18                  1,084,318  Replsys.sql 08-Feb-2003 06:40  2000.80.765.0     176,696  Sqlmap70.dll 08-Feb-2003 06:40  2000.80.765.0      57,920  Sqlrepss.dll 08-Feb-2003 06:41  2000.80.765.0   7,528,529  Sqlservr.exe 08-Feb-2003 06:40  2000.80.765.0      45,644  Sqlvdi.dll 08-Feb-2003 06:40  2000.80.765.0      82,492  Ssnetlib.dll Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.



MORE INFORMATION
This problem only occurs with malformed queries. The fix for the problem is to throw an error that indicates that the sp_cursoropen call is not well formed, instead of causing an access violation.

Keywords: kbbug kbfix kbqfe kbsqlserv2000presp4fix kbhotfixserver KB810163

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