This attribute controls the commit frequency during insert operations when you cannot use an Insert as Select statement.
You cannot use Insert as Select in the following cases:
The table has a LONG column.
The Database Link to Source destination repository attribute is not set during the Copy to Destination step.
The table processed has a user defined type column, such as WF_EVENT_T, and the database version is Oracle 9i or lower during the Copy to Destination step.