Microsoft KB Archive/824227

= FIX: A SELECT statement that contains computed columns and invalid filter condition values may cause an access violation =

Article ID: 824227

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 #: 469684 (SQL Server 8.0)



SYMPTOMS
When you run a SELECT statement on a table that contains one or more computed columns and the SELECT statement contains invalid parameter values for the filter conditions, an access violation may occur.

The SELECT statement that contains the invalid parameter values may run successfully if Microsoft SQL Server 2000 already stores a query execution plan that was generated by using valid parameters for the same SELECT statement. If you clear the SQL Server procedure cache and then run the SELECT statement again with invalid parameter values, the problem may occur again.

When the access violation occurs, you may notice a stack dump file that is similar to the following: * *******************************************************************************
 * BEGIN STACK DUMP:
 * 05/14/03 21:31:23 spid 63
 * Exception Address = 00747D1A (CConvertCtx::PboWithComputedColumnDependencies + 000000E7 Line 0+00000000)
 * Exception Code = c0000005 EXCEPTION_ACCESS_VIOLATION
 * Access Violation occurred reading address 00000014
 * Exception Code = c0000005 EXCEPTION_ACCESS_VIOLATION
 * Access Violation occurred reading address 00000014

You may also notice a short stack dump file that is similar to the following:

********************************************************************************
 * Short Stack Dump
 * 00747D1A Module(sqlservr+00347D1A) (CConvertCtx::PboWithComputedColumnDependencies+000000E7)
 * 004C2F1D Module(sqlservr+000C2F1D) (CPhyOp_Fetch::PqteConvert+00000452)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0046C8FC Module(sqlservr+0006C8FC) (CConvertCtx::PqteConvertChild+0000002D)
 * 004797DF Module(sqlservr+000797DF) (CPhyOp_ComputeScalar::PqteConvert+00000043)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0046C8FC Module(sqlservr+0006C8FC) (CConvertCtx::PqteConvertChild+0000002D)
 * 0074EDD8 Module(sqlservr+0034EDD8) (CPhyOp_MergeUnion::PqteConvert+0000004F)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0046C8FC Module(sqlservr+0006C8FC) (CConvertCtx::PqteConvertChild+0000002D)
 * 004DE5C1 Module(sqlservr+000DE5C1) (CPhyOp_StreamGbAgg::PqteConvert+00000058)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0046C8FC Module(sqlservr+0006C8FC) (CConvertCtx::PqteConvertChild+0000002D)
 * 004797DF Module(sqlservr+000797DF) (CPhyOp_ComputeScalar::PqteConvert+00000043)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0046C8FC Module(sqlservr+0006C8FC) (CConvertCtx::PqteConvertChild+0000002D)
 * 00472235 Module(sqlservr+00072235) (CPhyOp_Top::PqteConvert+000000CE)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0046C8FC Module(sqlservr+0006C8FC) (CConvertCtx::PqteConvertChild+0000002D)
 * 00472235 Module(sqlservr+00072235) (CPhyOp_Top::PqteConvert+000000CE)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0046C8FC Module(sqlservr+0006C8FC) (CConvertCtx::PqteConvertChild+0000002D)
 * 00469726 Module(sqlservr+00069726) (CPhyOp_StreamUpdate::PqteConvert+0000293E)
 * 0044D9B4 Module(sqlservr+0004D9B4) (COptExpr::PqteConvert+000000BC)
 * 0044D820 Module(sqlservr+0004D820) (COptExpr::PqteConvertTree+00000055)
 * 00458633 Module(sqlservr+00058633) (COptContext::PcxteOptimizeQuery+000011D4)
 * 0045775B Module(sqlservr+0005775B) (CQuery::Optimize+000003F9)
 * 00457536 Module(sqlservr+00057536) (CQuery::Optimize+00000030)
 * 00455182 Module(sqlservr+00055182) (CCvtTree::PqryFromTree+0000029D)
 * 00454F30 Module(sqlservr+00054F30) (BuildQueryFromTree+00000046)
 * 00454E9D Module(sqlservr+00054E9D) (CStmtQuery::InitQuery+0000013E)
 * 004632DF Module(sqlservr+000632DF) (CStmtDML::InitNormal+0000011B)
 * 00463225 Module(sqlservr+00063225) (CStmtDML::Init+00000033)
 * 004458F7 Module(sqlservr+000458F7) (CCompPlan::FCompileStep+00000C4C)
 * 0044AB41 Module(sqlservr+0004AB41) (CProchdr::FCompile+00000D23)
 * 0041BF21 Module(sqlservr+0001BF21) (CSQLSource::FTransform+0000034C)
 * 0044CE55 Module(sqlservr+0004CE55) (CSQLStrings::FTransform+000001A1)
 * 0041B8EF Module(sqlservr+0001B8EF) (CSQLSource::Execute+0000015B)
 * 005000B1 Module(sqlservr+001000B1) (ExecuteSql+00000284)
 * 005F15DE Module(sqlservr+001F15DE) (CSpecProc::ExecuteSpecial+00000293)
 * 005F10DD Module(sqlservr+001F10DD) (CXProc::Execute+000000A3)
 * 005F334E Module(sqlservr+001F334E) (CSQLSource::Execute+000003C0)
 * 00438F0B Module(sqlservr+00038F0B) (execrpc+00000507)
 * 0043816D Module(sqlservr+0003816D) (execute_rpc+00000019)
 * 00427001 Module(sqlservr+00027001) (process_commands+00000232)
 * 41075002 Module(UMS+00005002) (ProcessWorkRequests+00000272)
 * 41074698 Module(UMS+00004698) (ThreadStartRoutine+00000098)
 * 7800C9EB Module(MSVCRT+0000C9EB) (beginthread+000000CE)
 * 77E887DD Module(KERNEL32+000087DD) (GetModuleFileNameA+000001D1)
 * 77E887DD Module(KERNEL32+000087DD) (GetModuleFileNameA+000001D1)



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) 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.   Date         Time   Version             Size   File name ---  31-May-2003  06:15  2000.80.818.0      78,400  Console.exe 24-Jun-2003 12:31  2000.80.818.0      33,340  Dbmslpcn.dll 24-Apr-2003 13:42                    786,432  Distmdl.ldf 24-Apr-2003 13:42                  2,359,296  Distmdl.mdf 29-Jan-2003 13:25                        180  Drop_repl_hotfix.sql 23-Jun-2003 10:10  2000.80.837.0   1,557,052  Dtsui.dll 23-Jun-2003 10:10  2000.80.837.0     639,552  Dtswiz.dll 23-Apr-2003 14:21                    747,927  Instdist.sql 02-May-2003 13:26                      1,581  Inst_repl_hotfix.sql 07-Feb-2003 18:10  2000.80.765.0      90,692  Msgprox.dll 31-Mar-2003 13:37                      1,873  Odsole.sql 04-Apr-2003 13:16  2000.80.800.0      62,024  Odsole70.dll 07-May-2003 08:11  2000.80.819.0      25,144  Opends60.dll 02-Apr-2003 09:18  2000.80.796.0      57,904  Osql.exe 02-Apr-2003 10:45  2000.80.797.0     279,104  Pfutil80.dll 22-May-2003 10:27                     19,195  Qfe469571.sql 12-Jun-2003 04:07                  1,083,989  Replmerg.sql 04-Apr-2003 09:23  2000.80.798.0     221,768  Replprov.dll 07-Feb-2003 18:10  2000.80.765.0     307,784  Replrec.dll 04-May-2003 11:35                  1,085,874  Replsys.sql 31-May-2003 12:31  2000.80.818.0     492,096  Semobj.dll 31-May-2003 05:57  2000.80.818.0     172,032  Semobj.rll 28-May-2003 11:59                    115,944  Sp3_serv_uni.sql 31-May-2003 12:31  2000.80.818.0   4,215,360  Sqldmo.dll 07-Apr-2003 05:14                     25,172  Sqldumper.exe 19-Mar-2003 05:50  2000.80.789.0      28,672  Sqlevn70.rll 01-Jul-2003 11:48  2000.80.834.0     180,736  Sqlmap70.dll 07-Feb-2003 18:10  2000.80.765.0      57,920  Sqlrepss.dll 23-Jun-2003 10:10  2000.80.837.0   7,553,105  Sqlservr.exe 07-Feb-2003 18:10  2000.80.765.0      45,644  Sqlvdi.dll 24-Jun-2003 12:31  2000.80.818.0      33,340  Ssmslpcn.dll 31-May-2003 12:31  2000.80.818.0      82,492  Ssnetlib.dll 31-May-2003 12:31  2000.80.818.0      25,148  Ssnmpn70.dll 31-May-2003 12:31  2000.80.818.0     158,240  Svrnetcn.dll 31-May-2003 06:29  2000.80.818.0      76,416  Svrnetcn.exe 30-Apr-2003 11:22  2000.80.816.0      45,132  Ums.dll 01-Jul-2003 11:49  2000.80.834.0      98,816  Xpweb70.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 of this article. This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.

