New in Oracle need basic help

Hello
I'm new in Oracle (First day in oracle), in one company i have Oracle 11g (windows server 2003), but the problem is that I need to understand:
1) Name an location in file sistem of instances created
2) Name an location in file sistem of databases created
3) What is the best full backup method and how to create backups using cmd ?
google.com didnt help me.
Can some one help me ?

Hi there,
in Oracle we have a schema concept - All objects with segments are within the schema
Every schema can use one or more tablespaces
Each tablespace should have at least one datafile associated.
With that said, You can run this query to know where is your schemas:
Select owner,tablespace_name,sum(bytes/1024/1024) MB from dba_segments group by owner,tablespace_name;
And to check the location of each tablespace:
select tablespace_name,file_name from dba_data_files order by 1,2;
And to check all directories that have some file from the database
http://heliodias.wordpress.com/2007/10/04/oracle-diretories-list/
Regards,
Helio Dias
http://heliodias.wordpress.com

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