hi friends
version 8.1.5 and OS windows2000

While using sql*loader to load datafile(comma seperated) containing 1540 rows, the loader showed only244 as logical records.what happened to the rest of the records(appr. 1300) in datafile.If I am loading the same data file for the second time, how do I omitt/skip records already loaded.the table has around 31200 old rows.
Please help me.

thanks and regards