full backup can be taken with the interaction of oracle where we keep the tablespaces in begin backup mode and the respective datafiles are taken at os.finallt controlfile is taken backup .After that logfile switch should be force for recovery purpose.
Yes we can take full backup but this is not advisable it will degrade your performace if your database transaction is more .But using RMAN utility of oracle you can take which is more flexible than traditional full backup (it nothing but online backup ). regrdsrajat dey
ues we can tabke full backup while database is open. By using hot backup. Tabe backup of all tablespaces using hotback. and take backup on control file useing alter database backup controlfile to trace;and then take backup of pfile using: create pfile from spfile;In this way Full backup can be performed when the database is open;
Online backup can be whole and partial be full and incremental and be carried out with RMAN or with the operating system commands. But they can only be done if the database is in archivelog mode.
A datafile that is backed up online will not be synchronized with any particlular SCN nor it is synchronized with the other datafiles or the control files. It is backed up while it is in use: being read from by server processes and written by DBWn.
