DOCUMENT:Q238169 08-APR-2000 [sms] TITLE :SMS: Queries using SMS_R_SYSTEM Return Inaccurate Results PRODUCT :Microsoft Systems Management Server PROD/VER:winnt:2.0 OPER/SYS: KEYWORDS:kbsms200 kbsms200bug ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Systems Management Server version 2.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you create a query that uses joins and that contains the SMS_R_SYSTEM class, you may receive duplicate or inaccurate result sets for some records. This can occur even if you enable the Omit Duplicate Rows (Select Distinct) option. NOTE: To determine if your queries use the SMS_R_System class, view the query properties, and click Show Query Language. CAUSE ===== This issue can occur because the SMS_R_System class is an array, based on several SQL tables. A composite column is created from all the joined tables keys. This column is used to order the results so that the query code can roll up the array values. This column distorts the meaning of the unique directive, and may cause duplicates. WORKAROUND ========== To work around this issue, use the SMS_G_System class instead of the SMS_R_System class. SMS_G_System is displayed as the "Computer System" class and SMS_R_System is displayed as the "System Resource" class in the SMS Admin Console Query Builder Query Statement Properties dialog box. Note that when you select the Object Type System Resource, you do not select the System Resource class. If you need to query or report on IP information, you can use the Network Adapter Config class instead of the System Resource class to avoid using SMS_R_System. If you receive duplicate rows when you use SMS_R_System in a query, you can use the SMSExtract tool included in the Back Office Resource Kit 4.5 to export query results to Microsoft Access or Microsoft Excel for reporting. After you open the results in another program, you can remove the duplicate rows. STATUS ====== Microsoft has confirmed this to be a problem in the Microsoft products that are listed at the beginning of this article. Additional query words: prodsms dupes dupe result set wrong double wmi wql kbhowto ====================================================================== Keywords : kbsms200 kbsms200bug Technology : kbSMSSearch kbSMS200 Version : winnt:2.0 Issue type : kbbug ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.