How to kill all active and inactive oracle sessions for user

Question

I am trying the below script to kill all active and inactive oracle sessions for user at once but it doesn\'t work. The script executes successfully but does not kill sessions f

Answer 1

inactive session the day before kill

begin
    for i in (select * from v$session where status='INACTIVE' and (sysdate-PREV_EXEC_START)>1)
    LOOP
        EXECUTE IMMEDIATE(q'{ALTER SYSTEM KILL SESSION '}'||i.sid||q'[,]'  ||i.serial#||q'[']'||' IMMEDIATE');
    END LOOP;
end;