time 조건으로 필터링 하기
select logfilename,time-taken,time,cs-uri-stem,cs-uri-query,sc-status
--select count(*)
from C:\스터디exam로그\스터디209_u_ex140311.log
where to_time(time) >= timestamp('01:10:00','hh:mm:ss')
and cs-uri-stem = '/Course/ExamModule/Frame/FrameExaminationPage.aspx'
and time-taken is not null
and time-taken < 1000