Need help on exact SIDs generation in different SID tables (S,Q & Y tables)

Question

I have a scenario like..
Matgroup is a time-dependent attribute to Material. MatGroup is included in material dimension of cube C01. Cube C01 is loading with transactional data, which has both fields, Material and MatGroup, with the option of generate master date.
As a result..
Material SID table (S table) - Get Updated
MatGroup SID table (S table) - Get Updated
Now the question is whether material master tables (Q & Y tables) contains the new Material - MatGroup relationships with their validity time interval or not. i.e. are attributes of master data tables (Q & Y tables) updated?
Actually my requirement is I need to add the new time-dependent attribute to a characteristic, and I want it to be populated while transactional data loading into cube. Would to be possible? Please give the solution if it is possible.

Answer 1

I am a bit confused. this also works without numbers in the C3 column.
drop table tablea;
drop table tableb;
create table tablea as
(select 1 C1,'B' C2, 'descA' C3 from dual union
select 1, 'B', 'descB' from dual union
select 2, 'x', 'descC' from dual union
select 3, 'y', 'descC' from dual
create table tableb as
(select 1 C1,'B' C2, 'descC' C3 from dual union
select 2, 'x', 'descB' from dual union
select 3, 'y', 'descC' from dual
merge into tableb t1
using (
           select tablea.C1, tablea.C2, max(tablea.C3) C3
           from tablea, tableb
           where tablea.c1 = tableb.c1
           and     tablea.c2 = tableb.c2
           and     tablea.c3 != tableb.c3
           group by tablea.C1, tablea.C2) t2
  on (t1.C1 = t2.C1 and t1.C2 = t2.C2 )
when matched  then
update
set T1.C3 = t2.C3;
select * from tableb;
C1     C2     C3
1     B     descB
2     x     descC
3     y     descC