Packing multiple statement requests improves network/mainframe efficiency by reducing the number of sends and receives between the application and the Teradata Database.
To determine the ideal pack factor to specify in the Pack attribute, first use the PackMaximum attribute by setting it to 'Yes'. Setting this attribute to Yes on the first job run sets up iterative interactions with the Teradata Database to heuristically determine the maximum possible pack factor. At the end of the run, this value is displayed in the Stream operator’s logged output. Specify that determined value in the Pack attribute on subsequent runs. Set the PackMaximum to 'No'.
Alternatively, the Stream Driver TD_Evt_PackFactor event returns the current pack factor when queried. This value is available after a connection is initiated and before it is terminated.