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Action Element for ChronicleRule (ADF)

Provides a Transact-SQL statement that specifies the action to be taken in an event chronicle rule.

Синтаксис

<EventClasses>
    <EventClass>
        ...
        <ChronicleRule>
            ...
            <Action>

Element Characteristics

Characteristic Description

Data type

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

Default value

None.

Occurrence

Required once per ChronicleRule element.

Updates

Can be modified, but not added or deleted, when updating the application.

Element Relationships

Relationship Elements

Parent element

ChronicleRule Element (ADF)

Child elements

None.

Замечания

The Action element can contain Transact-SQL statements that maintain the event chronicle, or can contain calls to stored procedures that maintain the event chronicle.

Пример

This example shows a populated Action element. The Transact-SQL statements insert a row into the chronicle table if the stock information doesn't exist, and update the stock information if a row already exists.

<Action>
-- Insert New Stock Symbols with Prices
INSERT dbo.StockEventsChron (StockSymbol, StockPrice)
SELECT e.StockSymbol, e.StockPrice
    FROM dbo.StockEvents AS e
    WHERE e.StockSymbol
        NOT IN (SELECT StockSymbol FROM dbo.StockEventsChron);
-- Update Existing Stock Symbols with New Prices
UPDATE dbo.StockEventsChron
    SET StockPrice = e.StockPrice
    FROM dbo.StockEvents AS e 
    JOIN dbo.StockEventsChron AS c
        ON e.StockSymbol = c.StockSymbol
        WHERE e.StockPrice &gt; c.StockPrice;
</Action>

This example shows how to call a stored procedure that maintains the event chronicle.

<Action>
EXEC MyStoredProcdure;
</Action>

См. также

Справочник

Application Definition File Reference

Другие ресурсы

Определение правил хроники событий
Определение хроники для класса событий
Обновление экземпляров и приложений

Справка и поддержка

Получение помощи по SQL Server 2005