FieldName Element for EventClass/Schema/Field (ADF)
Specifies the user-defined name of an event field.
구문
<EventClasses>
<EventClass>
...
<Schema>
<Field>
<FieldName>
Element Characteristics
Characteristic | Description |
---|---|
Data type |
string, between 1 and 128 characters in length. |
Default value |
None. |
Occurrence |
Required once per Field element. |
Updates |
Can be modified, but not added or deleted, when you update the application. |
Element Relationships
Relationship | Elements |
---|---|
Parent element |
|
Child elements |
None. |
주의
Field names can contain letters, numbers, and the special characters _, #, @, and $. They must conform to SQL Server identifier conventions. For more information about SQL Server identifiers, see 식별자.
중요: |
---|
You cannot name an event field EventBatchID or EventID. Notification Services already uses these field names internally. |
중요: |
---|
If you update a FieldName element, updating the application deletes and re-creates the event class to which it corresponds. This includes dropping and re-creating the SQL Server tables and indexes used by this event class. Any data existing in the original event class tables is permanently deleted. |
예
The following example shows how to specify that the field name is StockSymbol.
<FieldName>StockSymbol</FieldName>
참고 항목
참조
Application Definition File Reference
관련 자료
핵심 이벤트 클래스 속성 정의
인스턴스 및 응용 프로그램 업데이트