SQL*Loader-00658
parallel append loads must specify APPEND_PARALLEL
Cause
The table being loaded in parallel append mode did not use APPEND_PARALLEL. Automatic parallel loads cannot use skip=n to continue loads because the order of record loading differs from run to run. Consider this when loading a table in parallel, especially when loading into a nonempty table.
Action
Replace APPEND with APPEND_PARALLEL in the control file.