SetIndexedColumnDESC Method
Questa caratteristica verrà rimossa a partire da una delle prossime versioni di Microsoft SQL Server. Evitare di utilizzare questa funzionalità in un nuovo progetto di sviluppo e prevedere interventi di modifica nelle applicazioni in cui è attualmente implementata.
The SetIndexedColumnDESC method specifies a column to sort in descending order as part of an index.
Sintassi
object.SetIndexedColumnDESC(ColumnName ,Descending)
Parts
object
Expression that evaluates to an object in the Applies To list.ColumnName
String that specifies the column name.Descending
Boolean that specifies whether to sort a column in descending order.
Prototype (C/C++)
HRESULT SetIndexedColumnDESC(
SQLDMO_LPCSTR ColumnName,
BOOL NewValue);
Osservazioni
By default, columns in an index are sorted in ascending order. Use the ColumnName parameter to specify a column on which to perform a descending sort. Set the Descending parameter to TRUE to specify that the column must be sorted in descending order. You must call SetIndexedColumnDESC once for each column to be sorted in descending order as part of the index.
Prior to using SetIndexedColumnDESC, use the IndexedColumns property to define the list of columns participating in the index. SetIndexedColumnDESC can only be specified before an index is created and cannot be used on an existing index.
[!NOTA]
If an application calls SetIndexedColumnDESCon an instance of SQL Server version 7.0, the constant, SQLDMO_E_SQL80ONLY, and the message "This property or method requires Microsoft SQL Server 2000 or later" are returned.