How to get informations on x$ view

I want to know information on x$ view (or xm$ view).
Is there anyone to know how to get this information?
I would appreciate it if anyone let me know.

aden, kang wrote:
I want to know information on x$ view (or xm$ view).
Is there anyone to know how to get this information?
I would appreciate it if anyone let me know.To understand the X$ tables ( they are not views) , you need to understand what they represent. There is no site/note AFAIK which tells about the description of these tables in a clear and concise manner, makes sense as these are internal tables and are supposed to be known by Oracle's internal people only. At the most what you can find from the net is the description of the table's name , information about the column and their description is not avaiable anywhere. This you have to dig yourself.
For a start, you can see what the correspondng V$ view of the table is showing and than have to start matching the columns of the views with the X$ with your own research.
HTH
Aman....

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