Question : oracle hot and cold backup

how can we take hot and cold backup in oracle 8.1.7

Answer : oracle hot and cold backup

Hot backup:
look for Sample Hot Backup Script (Note:30454.1) at
http://metalink.oracle.com

Cold backup
"Using Oracle 8 Guide, Chapter 13"
http://www.kem.ru/koi8-r/oracle/useoracle/ch13/ch13.htm