On a 7.3.4 database - I've got a 20G table with few extents (40). Do you think a "truncate table" will take long? Will it make my smon go crazy and make the system crawl for a significant period of time? I would guess not since # of extents is relatively few. Thoughts anyone?

Wonder if I should just play it safe by issuing a 'truncate table blah reuse storage;" and "alter table blah deallocate unused" in smaller chunks instead.