Microsoft Dynamics NAV 5.0 SP1 introduces a new way to handle SIFT. Instead of maintaining totals in separate tables, Dynamics NAV 5.0 SP1 uses a SQL feature called indexed views. Indexed views will automatically be maintained by the SQL Server.
With SQL Server 2000, updating an indexed view can be a time consuming process as the SQL Server 2000 might decide to include a clustered index scan as part of its query plan to update the view. If your Microsoft Dynamics NAV implementation includes tables with many records and is based on Microsoft SQL Server 2000 there is a potential risk for experiencing bad performance.
Microsoft Dynamics NAV 5.0 SP1 is optimized for Microsoft SQL Server 2005 and you should consider to upgrade to SQL Server 2005 if you are implementing Microsoft Dynamics NAV 5.0 SP1.
The problem described here, only applies to SQL Server 2000. SQL Server 2005 handles the updates of indexed views much more efficiently.
Lars Lohndorf-Larsen (Lohndorf)