SqlStatement Element for SubscriptionClass/IndexSqlSchema (ADF)

Contains a Transact-SQL statement that creates a SQL Server index for the subscription table.

语法

<SubscriptionClasses>
    <SubscriptionClass>
        ...
        <IndexSqlSchema>
            <SqlStatement>

Element Characteristics

Characteristic Description

Data type

string, between 1 and 100,000 characters in length.

Default value

None.

Occurrence

Optional once or more per IndexSqlSchema element.

Updates

Can be added, deleted, and modified when updating the application.

Element Relationships

Relationship Elements

Parent element

IndexSqlSchema Element for SubscriptionClass (ADF)

Child elements

None.

备注

If you add, delete, or update the indexing SqlStatement element, updating the application deletes and re-creates the subscription class to which it corresponds. This includes dropping and re-creating the SQL Server tables and indexes used by this subscription class. Any data existing in the original SQL Server tables is permanently deleted.

示例

The following example shows a SqlStatement element that creates an index on the StockSubscriptions table.

<SqlStatement>
CREATE INDEX StockSubIndex
ON StockSubscriptions (SubscriberId);
</SqlStatement>

请参阅

参考

Application Definition File Reference

其他资源

为订阅类定义索引
更新实例和应用程序

帮助和信息

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