Getting the sum of all members in a hierarchy....

Question

Hi,
I want to get the sum of each member in a hierarchy....
The hierarchy is defined in the table strdet:
create table strdet
(costcenterms varchar2(20),     // parent
costcenterdet varchar2(20),    // child
lev varchar2(1))The values for each object/material per costcenter(child) is defined in the table details_det:
create table details_det
(costcenterms varchar2(20),
eppid varchar2(30) ,
purchcontyear0 number(4,1) )Some sample data:
insert into strdet values ('1' , '1.1','2')
insert into strdet values ('1' , '1.2','2')
insert into strdet values ('1.1' , '1.1.1','3')
insert into strdet values ('1.1' , '1.1.2','3')
insert into strdet values ('1.2' , '1.2.1','3')
insert into strdet values ('1.2' , '1.2.2','3')
insert into strdet values ('1.2' , '1.2.3','3')
insert into strdet values ('1.1.1' , '1.1.1.1','4')
insert into strdet values ('1.1.1' , '1.1.1.2','4')
insert into strdet values ('1.1.2' , '1.1.2.1','4')
insert into strdet values ('1.2.1' , '1.2.1.1','4')
insert into strdet values ('1.2.1' , '1.2.1.2','4')
COMMIT;
insert into details_det values('1.1.1.1','epp1',10);
insert into details_det values('1.1.1.1','epp2',20);
insert into details_det values('1.1.1.1','epp3',0);
insert into details_det values('1.1.1.2','epp1',0);
insert into details_det values('1.1.2.1','epp2',5);
insert into details_det values('1.1.2.1','epp4',15);
insert into details_det values('1.2.1.1','epp1',65);
insert into details_det values('1.2.1.1','epp2',95);
insert into details_det values('1.2.1.2','epp1',5);
commit;The output of the desired sql stmt must be like this:
costcenter             val
1                        220
1.1                       55
1.2                     165
1.1.1                    30
1.1.2                    20
1.2.1                  165I have written the following , so far.....
SQL> select distinct s.costcenterms , sum(purchcontyear0) over(partition by s.costcenterms order by s.costcenterms)
  2        from details_det d , strdet s
  3        where s.costcenterdet=d.costcenterms(+)
  4        start with s.costcenterms='1'
  5             connect by  s.costcenterms = prior s.costcenterdet
  6        order by s.costcenterms
  7  /
COSTCENTERMS                                                 SUM(PURCHCONTYEAR0)OVER(PARTIT
1.2                                                         
1.2.1                                                                                   165
1.1.1                                                                                    30
1.1.2                                                                                    20
1                                                           
1.1                                                         
6 rows selectedHow should i modify the above sql stmt to get the desired result...????
Note: I use OracleDB 10g. v.2
Thanks, a lot
Sim

Answer 1

I' m grateful to all.....!!!!
I connected as user SYS so as to give the appropriate privileges to SCOTT schema ....
SQL*Plus: Release 10.2.0.1.0 - Production on Êõñ Óåð 14 11:03:44 2008
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
SQL> connect sys/***@info as sysdba;
Connected
SQL> grant create materialized view to scott;
Grant succedded
SQL> grant alter any materialized view to scott with admin option;
Grant succedded
SQL> connect scott/tiger@info;
Connected
SQL> create materialized view mv 
  2  as
  3  select s.costcenterms , sum(connect_by_root d.purchcontyear0) sum_cbr
  4   from details_det d  , strdet s
  5   where s.costcenterdet = d.costcenterms(+)
  6  connect by s.costcenterdet = prior s.costcenterms
  7  group by s.costcenterms
  8  order by length(s.costcenterms) , s.costcenterms ;
create materialized view mv
Error in line 1
ORA-30361: unrecognized string type
SQL> create materialized view x_mv
  2  as
  3  select grp, sum(purchcontyear0)
  4  from (
  5  select connect_by_root s.costcenterms grp, d.purchcontyear0
  6   from strdet s, details_det d
  7  where s.costcenterdet=d.costcenterms(+)
  8  connect by s.costcenterms = prior s.costcenterdet
  9  )
10  group by grp
11  /
Materialized view created
SQL> create materialized view mv 
  2  as
  3  select s.costcenterms , sum(connect_by_root d.purchcontyear0) sum_cbr
  4   from details_det d  , strdet s
  5   where s.costcenterdet = d.costcenterms(+)
  6  connect by s.costcenterdet = prior s.costcenterms
  7  group by s.costcenterms ;
create materialized view mv
Error in line 1
ORA-30361: unrecognized string typeTo sum up.....
Rob's version of definition of mv is unsuccessful... even when i omit the order by clause.... whereas SY's version is successful..... Can you imagine why since... as Rob posted above , it is successful in his environment......!!!!!
Note: As regards the ORA- error , the cause and action of Oracle is as follows:
Cause: An internal Oracle error occured.
    Action: Report the problem through your normal support channels. Thanks again,
Sim