Getting sum of rows based on column in oracle -

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i want sum of values of 1 column group column. e.g

month     count jan         5 jan         7 feb         1 feb         2

i want

month     count   status jan         5       jan         7       b jan        12      sum feb         1       feb         2       b feb         3      sum

one way rollup. however, because want original data, approach "fake" aggregation rownum rollup:

select month, sum(count),        (case when rn null 'sum' end) status (select rownum rn, t.*       t      ) t group month, rollup(rn)

i'm not sure mean a , b in status column.


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