नोट
इस पेज तक पहुँच के लिए प्रमाणन की आवश्यकता होती है. आप साइन इन करने या निर्देशिकाओं को बदलने का प्रयास कर सकते हैं.
इस पेज तक पहुँच के लिए प्रमाणन की आवश्यकता होती है. आप निर्देशिकाओं को बदलने का प्रयास कर सकते हैं.
Provides a Transact-SQL statement that specifies the action to be taken in a subscription event rule.
Syntax
<SubscriptionClasses>
<SubscriptionClass>
...
<EventRules>
<EventRule>
...
<Action>
Element Characteristics
| Characteristic | Description |
|---|---|
Data type |
string, between 1 and 100,000 characters in length. |
Default value |
None. |
Occurrence |
Required once per EventRule element. |
Updates |
Can be modified, but not added or deleted, when updating the application. |
Element Relationships
| Relationship | Elements |
|---|---|
Parent element |
|
Child elements |
None. |
Example
This example shows a populated Action element for an EventRule. The Transact-SQL statements use a notification function to create notifications, and also insert event data into a chronicle table.
<Action>
-- Insert notifications into StockNotifications view
INSERT INTO StockNotifications ( SubscriberId, DeviceName,
SubscriberLocale, StockSymbol, StockPrice )
SELECT S.SubscriberId, S.DeviceName, S.SubscriberLocale,
E.StockSymbol, E.StockPrice
FROM StockSubscriptions S JOIN StockEvents E
ON S.StockSymbol = E.StockSymbol
JOIN StockEventChron C
ON S.StockSymbol = C.StockSymbol
WHERE S.StockTriggerPrice <= E.StockPrice
AND S.StockTriggerPrice > C.StockHighPrice;
-- Update the subscription chronicle
INSERT StockSubscriptionChron (SubscriberId, StockSymbol, StockPrice)
SELECT S.SubscriberId, S.StockSymbol, E.StockPrice
FROM StockSubscriptions S JOIN StockEvents E
ON S.StockSymbol = E.StockSymbol;
</Action>
See Also
Reference
Application Definition File Reference
Other Resources
Defining Event Rules
Defining Subscription Rules
Updating Instances and Applications