The UpdateStatistics method forces data distribution statistics update for a referenced Microsoft® SQL Server™ 2000 index or all indexes defined on a SQL Server table.
object.UpdateStatistics( )
object
Expression that evaluates to an object in the Applies To list
HRESULT UpdateStatistics( );
Index-based, data distribution statistics support SQL Server query optimization. Data distribution statistics are calculated for an index when the index is first used in query optimization or at user direction. Statistics are updated automatically at configurable intervals and at user direction.