PL Sql 分层分支总和

Question

我有这张桌子。只有明细表获得价值；我想得到分支的总和。

ACCOUNT         Value             
---------- ------------- 
100                           
100-01                    
100-01-01                 
100-01-01-001     7       
100-01-01-006     6       
100-01-01-271     5       
100-02            
100-02-01-001     1       
100-02-01-006     2       
100-02-01-271     3    

喜欢

ACCOUNT         Value             
---------- ------------- 
100               24 -- (sum of 100%)            
100-01            18 --  (sum of 100-01%)        
100-01-01         18 --(sum of 100-01-01%)        
100-01-01-001      7       
100-01-01-006      6       
100-01-01-271      5       
100-02             6 -- (sum of 100-02%)
100-02-01-001      1       
100-02-01-006      2       
100-02-01-271      3  

我尝试通过 and 进行 sum 并尝试 sum(value) where account like account||'-%' 但不能结束

Answer 1

使用子查询：

select account, (select sum(value) from t where account like a.account||'%') account from t a

例子：

with t(account, value) as (
  select '100',           null from dual union all
  select '100-01',        null from dual union all
  select '100-01-01',     null from dual union all
  select '100-01-01-001', 7    from dual union all
  select '100-01-01-006', 6    from dual union all
  select '100-01-01-271', 5    from dual union all
  select '100-02',        null from dual union all            
  select '100-02-01-001', 1    from dual union all
  select '100-02-01-006', 2    from dual union all
  select '100-02-01-271', 3    from dual )
select account, (select sum(value) from t 
  where account like a.account||'%') account from t a