We've got a load process thats is taking a huge amount of time (188.8.131.52 Solaris 8) and from looking at the code the statements used are just using insert append without disabling indexes etc. My thoughts on speeding this up are:
Turn logging off for tables invlolved
mark indexes unusable
alter session set skip_unusable_indexes=true
load data using insert append
rebuild indexes unrecoverable
turn logging back on for tables
any comments on this being a reasonable high level approach or not?