UpdateNotifications cannot be used with a Teradata database (any version).

MySQL version 5.0.x does not support multiple triggers with the same event (insert, delete, or update) for one table. Hence, with a MySQL database, when using an UpdateNotification to monitor a table, you must disable the notification before you can enable another UpdateNotification or an OrderedNotification with an update operation for the same table.

When using an UpdateNotification with a MySQL database, updating any database field with the same value will not invoke a trigger.