Support for HA event notification – PB Docs 2022

Oracle Real Application Clusters (RAC) is a cluster database that
uses a shared cache architecture. In Oracle 10g Release 2, a High
Availability (HA) client connected to an RAC database can register a
callback to indicate that it wants the server to notify it in case of a
database failure event that affects a connection made by the
client.

To take advantage of this feature, PowerBuilder users can script the
DBNotification event of the Transaction object. For more information, see
the description of the DBNotification event and the HANotification
database parameter in the section called “DBNotification” in PowerScript Reference and the section called “HANotification” in Connection Reference.