Precautions:
1.userid and control keywords do not lack;
2. Note that the database format: test / test @ database IP: 1521 / Oracle8, the last one is tnsnames the service_name, not the SID.
3. Write a log and bad generate a log.
sqlldr userid=test/test@数据库IP:1521/Oracle8 control=C:\Users\11873\Desktop\input.ctl log=input.log bad=input.bad SILENT=(HEADER, FEEDBACK)