Howmany oracle user connect with oracle server.

hi all
howmany oracle user connect with oracle server.
i want query for above sentance.

Robert,
This query will show us the username who are connect to a particular database. If OP wants that how many overall users are connected to his/her oracle server (which is having more than one db) then please tell us. Suppose 10 users are connected with db1 and 20 users are connected with db2.. like that.
Regards
Girish Sharma

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