SqlExpression Element for Protocol/Fields/Field (ADF)

Specifies a valid Transact-SQL expression that provides the protocol field value.

Syntax

<NotificationClasses>
    <NotificationClass>
        ...
        <Protocols>
            <Protocol>
                ...
                <Fields>
                    <Field>
                        ...
                        <SqlExpression>

Element Characteristics

Element Relationships

Hinweise

A Transact-SQL expression is a combination of identifiers, values, and operators that the database engine can evaluate to get a result. You can use any expression that can be part of a SELECT statement. The terms of the expression can be any of the following:

• Constants.
• Calls to functions.
• The notification fields defined in the ADF (but not computed fields).
• The following built-in notification fields:
  • SubscriberId
  • DeviceName
  • DeviceTypeName
  • DeviceAddress
  • SubscriberLocale
  • DeliveryChannelName

For more information, see Ausdrücke (Datenbankmodul).

Enclose string constants in single quotation marks.

If a Field element does not include a SqlExpression element, it must include a FieldReference element.

Beispiel

The following example shows a how to define a Transact-SQL expression that concatenates a string with a notification field. This could be used as a subject line for an e-mail message.

<SqlExpression>
    'Stock Price Update for ' + StockSymbol
</SqlExpression>

Siehe auch

Verweis

Application Definition File Reference

Andere Ressourcen

Angeben des Namens und der Felder des Übermittlungsprotokolls
Ausdrücke (Datenbankmodul)
Aktualisieren von Instanzen und Anwendungen

Hilfe und Informationen

Informationsquellen für SQL Server 2005