PostgreSQLDatabase.Notify
From Xojo Documentation
Method
Sends a notification named "Name".
Notes
Clients that have used the Listen method for the name will be get the notification. To receive notifications, call the CheckForNotifications method. Notifications are received in the PostgreSQLDatabase.ReceivedNotification event handler.
The Notify method does not have a way to send a payload. As a workaround you can call the command directly instead:
db.ExecuteSQL("NOTIFY ""UpdateCustomers"", '5, 10, 15'")
Sample Code
Send the "RefreshAll" notification:
// db is a previously connected PostgreSQLDatabase
db.Notify("RefreshAll")
db.Notify("RefreshAll")