IndexSqlSchema Element for SubscriptionClass (ADF)
Contains Transact-SQL statements for creating one or more indexes on a subscription table.
Syntax
<SubscriptionClasses>
<SubscriptionClass>
...
<IndexSqlSchema>
Element Characteristics
| Characteristic | Description |
|---|---|
Data type |
None. |
Default value |
None. |
Occurrence |
Optional once per SubscriptionClass element. |
Updates |
Can be added and deleted when updating the application. |
Element Relationships
| Relationship | Elements |
|---|---|
Parent element |
|
Child elements |
SqlStatement Element for SubscriptionClass/IndexSqlSchema (ADF) |
Hinweise
If you add or delete an IndexSqlSchema element, updating the application re-creates the subscription class to which it corresponds. SQL Server 2005 Notification Services renames existing subscription tables by appending Old to the name and then creates new subscription tables. Existing subscription table indexes remain unchanged.
If you want to copy data between the old and new subscription tables, you must do so after updating the application. For more information, see Aktualisieren einer Anwendung.
Beispiel
The following example shows how to create an index named StockSubIndex on the SubscriberId field of the StockSubscriptions table in the application database.
<IndexSqlSchema>
<SqlStatement>
CREATE INDEX StockSubIndex
ON StockSubscriptions (SubscriberId)
</SqlStatement>
</IndexSqlSchema>
Siehe auch
Verweis
Application Definition File Reference
Andere Ressourcen
Definieren von Indizes für eine Abonnementklasse
Aktualisieren von Instanzen und Anwendungen