I have a empty table with 3 indexes set on it. I used SQLLDR to upload 4
million records to it (Direct Load). It took about 2 hrs to do this.
But when I put SKIP_INDEX_MAINTENANCE=true, it just took 8 minutes to upload
the data. Then I issued ALTER INDEX indexname REBUILD; for each indexes and
it took about 45 minutes for each indexes. So, if we consider the total
time, it all adds up to the same figure of 2 Hrs.
Is there a better way of doing this to improve the performance ? I read in
many articles that when we do a Direct Load we should drop the indexes. But,
if index rebuilding is going to take this much of time, then whats the use ?
Thanks,
Rajan
