Oracle 8i Back up

Hi ,
I have Installed Oracle 8i rel 8.1.7 on the windows NT platform.
I have one oracle instance called ora817. My ERP software sits on it.
Basically it has two database schemas , test and prod.
I have created the above said instance while installing oracle through CD, but i did my database creation manually .
By going inside the server manager , i created the oracle database.
by executing the scripts.
My oracle home is d:\oracle817.
My questions:
Can I have one more oracle instance with the same home ?If not what is the procedure to create one more instance ?
How do i take back up for both the the database shcemas?

hi i am Shan Here
if u need to take a back up,it has three types
if u want to take
1 cold backup
shutdown database and copy the datafile controlfile..........
2 hot backup
use begin backup command
3 by using rman
if database is same thenwithout service and if diffrent then with service............

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<BLOCKQUOTE>quote:<HR>Originally posted by shailender:
hello!
i am new bie and am learning oracle database.can you tell me how do i take the data back up .
Thanks in advance
shailender<HR></BLOCKQUOTE>
null

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I am new in oracle.
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Edited by: 856405 on May 3, 2011 11:37 PM

Anu wrote:
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We are deploying a new data center with 2 and 3-node SFRAC clusters and we have an onsite Sun prof. services person that claims we also need to limit the user.root and default projects in the following manner (systems have 64gb memory):
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Edited by: rhugga1 on Jan 21, 2010 7:10 AM

Yes the oracle documentation is wrong. I know how to set the oracle parameters.. As my OP states I was inquiring about limits set on the user.root and default projects
Since Solaris 10 update 4, these oracle kernel parameters ARE IGNORED COMPLETELY when set in /etc/system (not to mention some are deprecated) You can easily do an empirical test of this yourself since there is so much conflicting documentation out there, including some of Sun's docs.
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