imp username/pwd@orcl file=c: empexp.dmp tables=(table1, table2)
#imp username/pwd@ip:1521/orcl full=y file=D:/ORACLEBACK/0822qrtz.dmp
exp username/pwd@orcl file=c: empexp.dmp tables=(table1, table2)
exit
#exp username/pwd@ip:1521/orcl file=d:oracleback1028.dmp