How to make complete backup of 11g express edition release2 and restore.

Dear Sir/Madam and friends
Please tel me how to backup and restore 11 g express release2 from sqldevlopter , sql command or any other method.
yours sincerely
Edited by: 944768 on Jul 20, 2012 1:40 AM

1) Please tel me is it good practice to turn on archivelog. also tel me cases where it is good.As you already hint with your second question, this really depends on what you are doing with your database and what availability requirements you have. There are other options for backups, of course. Instead of explaining all pros and cons of all options (this really has been done in certain other sources you could read if you really want to) you could simply describe your scenario and we'll see if using archive log is a good choice for it.
2) to turn on ARCHIVELOG , with which command i should connect.I quote the manual I've referenced:
To turn on ARCHIVELOG mode:
Using the SQL Command Line, log in to the database and connect as SYSDBA, as described in [url http://docs.oracle.com/cd/E17781_01/server.112/e18804/users_secure.htm#CHDBBFBF]Logging In and Connecting to the Database as SYSDBA.
Follow the manual, and you'll find the answer to your question.
-Udo

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