determine the progress of direct path insert and merge operations

[Paresh Jagnade]

It might be the database is in NOARCHIVELOG mode, because of which its not reterving that long insert and merge command.
At the time of executing this process did the database go down or was it hangged.
U can even check whether there was a lock on the table on which long insert and merge command is executed.?
OR
Check the table data whether the long insert and merge command has completed successfully.