So, i am facing this issue while turning to enable in the JDBC pooling notification.
[ART.116.3038] Adapter Runtime (Notification): Error in Notification Callback:enableCallback notification myTraining.adaptersNotification.notificationUpdate:continentsData. [ADA.1.114] The database objects for “myTraining.adaptersNotification.notificationUpdate:continentsData” notification already exist. You can delete the objects and try enabling the notification again. To delete the existing database objects use the “pub.pollingNotificationUtils:dropDatabaseObjects” service.
Did you follow the steps given in error itself, its likely that the user you are using doesnt have delete privilige. Please go to database and delete trigger and buffer table manually.
This is one of the reasons I usually advocate for using “Basic Notifications” and not the insert, update, delete specific notifications.
While it seems convenient for the notification to fully manage the DB objects, there are constraints to consider: Search the forums for “basic notification” to see the discussions in the past about the options and pros/cons. I would strongly suggest always using basic notifications.