Oracle Core DBA Learning

Hi All,
Currently i am working as Oracle Apps DBA in Oragnization and i also have to work some time on core side also. But i am facing some time problems because i have not worked much on core side. As i have started my first job it self as Apps DBA only. So my question is that i want to learn on core side more. Can you guide me how can i learn on core sid more? I would like to learn what ever every day routine work is done by core dba. I would appricated your help.
Thanks,
Vishal Joshi

Vishal Joshi wrote:
Hi All,
Currently i am working as Oracle Apps DBA in Oragnization and i also have to work some time on core side also. But i am facing some time problems because i have not worked much on core side. As i have started my first job it self as Apps DBA only. So my question is that i want to learn on core side more. Can you guide me how can i learn on core sid more? I would like to learn what ever every day routine work is done by core dba. I would appricated your help.
Thanks,
Vishal Joshigo through with Oracle Architecture & Administration
http://download.oracle.com/docs/cd/B19306_01/server.102/b14231.pdf

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