Not able to create database in oracle 10g

Not able to create database in oracle 10g.I am using todd to connect to oracle 10g express edition.
when i say
create databe test_db
it is giving error message saying
ORA-01501: create database failed
CREATE DATABASE failed
Cause: An error occurred during create database
Action: See accompanying errors.
ORA-01100: database already mounted.
I was able to create tables and able to do all other sql commands using todd on oracle 10g.
I am using windows vista laptop.Please suggest me how can i create database so that in the next step i can run one .sql file to create the tables etc structure.Thanks in advance
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gudii9Asked:
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grzessioCommented:
your database must be in nomount state:
try to shutdown database and start in nomount state:
startup nomount
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TolomirAdministratorCommented:
Oracle express edition is a complete package that installs a database by default.
So I suppose that there is no way to install a 2nd database.

Please follow directions on http://st-curriculum.oracle.com/tutorial/DBXETutorial/html/module2/loaddata2.htm

to see how to create a new structure.

This is the complete tutorial: http://st-curriculum.oracle.com/tutorial/DBXETutorial/index.htm

Tolomir
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xenetarCommented:
Tolomir is right... if you're already in a "mount" state, then there is already a database created.   An instance can only have one database.  You would need to delete the pre-created database and create a new one.  

Why not just use the database provided? (probably name "ORAC" or something)


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TolomirAdministratorCommented:
The entire management can be done with the webinterface that comes with oracle XE.

So you should use this to adapt the database to you needs.

Follow the instructions (in flash) from this site http://st-curriculum.oracle.com/tutorial/DBXETutorial/index.htm and you should be able to solve the problem.




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gudii9Author Commented:
thank you all for your help
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