A slightly different running sum in a query of the hierarchy

Hello

I've stuck with this problem for some time, so pls help:

I'm basically trying rollup/aggregate values from the lower level nodes for the upper level nodes in a hierarchy. But this aggregate is a little different from a simple cumulative values.

create the table ent_rel (parent number, number of children, number of child_amount);

insert into ent_rel
Select null, 100, the double null
Union all select 100, 101, the double null
the Union all select 101, 102, 20 of the double
Union all select 102, 103, the double null
Union all select 103, 104, the double null
Union all select 104, 105, the double null
the Union all select 105, 106, 40 of the double
Union all select 106, 107, the double null
the Union all select 107, 108, 20 of the double
the Union all select 107, 109, 10 of the double
Union all select 101, 203, the double null
the Union all select 203, 205, 50 of the double
Union all select 205, 207, the double null
Union all select 207, 209, the double null
the Union all select 209, 210, 10 of the double
;

commit;

Select RPAD (' ', (LEVEL - 1) * 2, '-'). child child
level
child_amount
of ent_rel
Start with the parent is set to null
connect by prior child = parent

CHILD_AMOUNT LEVEL CHILD
--------------------------------- ------ -------------
1 100
--101 2
---102 3 20
---103 4
---104 5
---105 6
---106 7 40
---107 8
---108 9-20
---109 9 10
---203 3
---205 4 50
---207 5
---209 6
---210 7 10

Now, I need a SQL query or even a simple PL/SQL code to get the field DESIRED_AMOUNT as shown below:

Please note that there could be many more branches parallel to a node, but I kept simple just to get the concept.

DESIRED_AMOUNT CHILD_AMOUNT LEVEL CHILD
--------------------------------- ------ ------------- --------------
100 1 70
--101 2 70
---102 3 20 20
---103 4-40
---104 5 40
---105 6 40
---106 7 40 40
---107 8 30
---108 9 20 20
---109 9 10 10
---203 3 50
---205 4 50 50
---207 5 10
---209 6 10
---210 7 10 10

Thank you very much in advance.

Thank you and best regards,
In.

Tags: Database

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Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL01_FI_0S','Montreal Rd Disch Flow 1',to_date('2010-01-15:19','YYYY-MM-DD:HH24'),4.42345);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL01_FI_0S','Montreal Rd Disch Flow 1',to_date('2010-01-15:20','YYYY-MM-DD:HH24'),4.06335);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL01_FI_0S','Montreal Rd Disch Flow 1',to_date('2010-01-15:21','YYYY-MM-DD:HH24'),3.4579);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL01_FI_0S','Montreal Rd Disch Flow 1',to_date('2010-01-15:22','YYYY-MM-DD:HH24'),4.2333555);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL01_FI_0S','Montreal Rd Disch Flow 1',to_date('2010-01-15:23','YYYY-MM-DD:HH24'),4.45789);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:00','YYYY-MM-DD:HH24'),5.166712);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:01','YYYY-MM-DD:HH24'),5.97835);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:02','YYYY-MM-DD:HH24'),5.367);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:03','YYYY-MM-DD:HH24'),5.67788);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:04','YYYY-MM-DD:HH24'),5.06335);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:05','YYYY-MM-DD:HH24'),4.23456);
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Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:07','YYYY-MM-DD:HH24'),5.5890);
Insert into MV_ZONE_HOURLY (TAG_NAME,TAG_DESCRIP,DATETIME,TAG_AVG) values ('MR_OL02_FI_0S','Montreal Rd Disch Flow 2',to_date('2010-01-15:08','YYYY-MM-DD:HH24'),5.166712);
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FROM       edycons_summary     v
JOIN       hourly_summary     h     ON     h.mnth     = v.mnth
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