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create table logon_logs (logon_time date,username varchar2(30),machine varchar2(64),ipadr varchar2(30),program varchar2(64),module varchar2(64),terminal varchar2(64))
2.在sys模式下创建一个触发器:
create or replace trigger logusersconnectsafter logon on database begininsert into logon_logs values(sysdate,user,sys_context('USERENV','HOST'),sys_context('USERENV','IP_ADDRESS'),sys_context('USERENV','ACTION'),sys_context('USERENV','MODULE'),sys_context('USERENV','TERMINAL'));commit;end;/
select * from logon_logs;
–查看当前的所有session数
select count(*) from v$session;
–查看当前的客户端计算机名为RHEL的所有session数
select count(*) from v$session where machine = 'RHEL';
–查看当前的各个客户端计算机的连接数
select count(*) , machine from v$session group by machine;
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