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SQL> select b.spid,a.sid,a.serial#,a.machine from v$session a,v$process b where a.paddr =
b.addr and a.machine='SYS_F85';
 
SPID                SID    SERIAL#   MACHINE
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SQL>execute sys.dbms_system.set_ev(15,196,10046,0,'');
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SQL> select value from v$parameter where name = 'user_dump_dest';
VALUE
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