EnumLastStatisticsUpdates Method
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The EnumLastStatisticsUpdates method returns a QueryResults object that enumerates the query optimizing statistics maintained on a table.
Sintassi
object
.EnumLastStatisticsUpdates( [ IndexName ] )
as QueryResults
Parts
object
Expression that evaluates to an object in the Applies To list.IndexName
Optional. String that names an existing index and that restricts output to the index named.
Prototype (C/C++)
HRESULT EnumLastStatisticsUpdates(
LPSQLDMOQUERYRESULTS* ppResults,
SQLDMO_LPCSTR IndexName = NULL);
Returns
A QueryResults object that contains one result set defined by these columns.
Column |
Data type |
Description |
|---|---|---|
last update |
smalldatetime |
Date and time of most recent update. When NULL, the distribution statistics have not been updated after object creation. |
name |
nvarchar(129) |
Index name or statistics definition name. |
Osservazioni
Data distribution statistics are maintained for indexes defined on a table and as directed by the user. By default, the EnumLastStatisticsUpdates method returns a result set that contains rows referencing both indexes and system and user-defined data distribution statistics.