Microsoft KB Archive/238169

= SMS: Queries using SMS_R_SYSTEM Return Inaccurate Results =

Article ID: 238169

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Systems Management Server 2.0 Standard Edition

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This article was previously published under Q238169



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 that this is a problem in the Microsoft products that are listed at the beginning of this article.

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Keywords: kbbug KB238169

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