FIX: An Analysis Services Virtual Cube That Is Based on a Real-Time ROLAP Cube Does Not Receive Updates from the Source (324859)

SYMPTOMS

When a virtual cube in Analysis Services contains one or more source cubes that use relational OLAP (ROLAP) storage with real-time updates, the virtual cube data is not updated when the source table for the ROLAP source cube (or cubes) is changed.

When you disconnect from the computer that is running Analysis Services, reconnect, and then re-issue the query to update the data.

CAUSE

The Analysis Services client DLL uses caching of query results to provide faster answers to queries for which the client already has retrieved data. The client periodically queries the computer that is running Analysis Services to determine if any of the cubes for which it has cached results have been changed. If the version number for any of the objects, for which the client has cached results, has changed, the Analysis Services client clears the cached results, and then sends any subsequent queries to the computer that is running Analysis Services.

Before this update, an update of the version number information for virtual cubes did not occur when the update for the underlying source cube (or cubes) version information occurred. As a result, the client did not clear the cache for the virtual cube.

RESOLUTION

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 INF: How To Obtain the Latest SQL Server 2000 Service Pack

NOTE: The following hotfix was created before the release of Microsoft SQL Server 2000 Service Pack 3.

The English version of this fix 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
   ------------------------------------------------------------
   06-JUN-2002  19:22 PM  8.0.639.0      1,774,148  Msmdsrv.exe
   07-JUN-2002  10:36 AM  8.0.639.0      2,024,016  Msolap80.dll
   18-APR-2001  01:23 AM  2000.80.382.0    815,676  Sqldata.dll
   07-JUN-2002  10:36 AM  2000.80.534.0    590,396  Sqlsort.dll

NOTE: Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.

MORE INFORMATION

The frequency of the version checking queries that are sent to the computer that is running Analysis Services by the client is controlled with the Auto Synch Period parameter in the connection string. If no Auto Synch Period is specified in the client connection string, by default, the value uses 10 seconds. For more information, view the "Auto Synch Period" topic in the Analysis Services Books Online.