oracle - Need to update 15 min every last column value -


query result screenshot

select route_desc,        transit_time,        to_timestamp(time_depart) +                       numtodsinterval(transit_time,'hour') "arrival",        (to_timestamp(time_depart)                     +numtodsinterval(nvl(transit_time,0),'hour'))                            + interval '15' minute "dept"   fe_jproute_ship_tmp  trip_no='trp0000464'     , guid='-1259520161' order seq_no;

i want output this

route_desc  transit_time  arraival                          dept ----------------------------------------------------------------- null        null          25-jul-17 06.15.00.000000000 null        1             25-jul-17 07.15.00.000000000   25-jul-17 07.30.00.000000000 null        3             25-jul-17 10.30.00.000000000   25-jul-17 10.45.00.000000000

desired result screenshot

you need use cumulative sum() - rows between unbounded preceding , current row - default in oracle sum () on (order ) along nulls first clause.

here simulation of query.

with fe_jproute_ship_tmp   (select null route_desc,     null transit_time,     '25-jul-17 06.00.00.000000000 am' time_depart   dual   union   select null route_desc,     1 transit_time,     '25-jul-17 06.00.00.000000000 am' time_depart   dual   union   select null route_desc,     3 transit_time,     '25-jul-17 06.00.00.000000000 am' time_depart   dual   ) select transit_time,   arrival,   nvl2( arrival,arrival + interval '15' minute ,to_timestamp(time_depart ) + interval '15' minute ) "dept"   (select transit_time,     time_depart,     to_timestamp(time_depart ) + numtodsinterval(cumu_transit_time,'hour') + numtodsinterval(15*cumu_dep_intv,'minute') arrival       (select transit_time,       time_depart,       sum ( transit_time ) on ( order transit_time nulls first ) cumu_transit_time,       sum ( nvl2(transit_time,1,null )) on ( order transit_time nulls first ) cumu_dep_intv     fe_jproute_ship_tmp     )   );

you have incorporate in main query. let me know feedback.


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