cumulative values
Hello
I have a table like this:
Ident | PK | rank |
A | 20 | 1 |
B | 30 | 2 |
C | 40 | 3 |
D | 40 | 3 |
E | 50 | 4 |
I have an accumulation of PK with distinct values in the order of ranking. Like this:
Ident | PK | rank | run_sum |
A | 20 | 1 | 20 |
B | 30 | 2 | 50 |
C | 40 | 3 | 90 |
D | 40 | 3 | 90 |
E | 50 | 4 | 140 |
I appreciate your help.
an updated version to account for the line "F" e.t.c.
with sample_data (ident, pk, rank) as
(select 'A', 20, 1 double Union all
Select 'B', 30, 2 double Union all
Select' it, 40, of all 3 double union
Select would be ', 40, of all 3 double union
Select 'E', 50, 4 Union double all the
Select 'F', 20, 5 FROM DUAL),
d_sample_data (pk, rw, ident, rank) as
(select ident, pk, row_number() on rw (pk partition, order of rank by null), rank of sample_data)
Select sum, rank, pk, ident (case when rw = 1 end then pk) on sm (rank order)
of d_sample_data
rank order
Greetings,
SIM
Tags: Database
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