Help in the below query

Question

Hi ,
I have the following string
select '1, ,3, , , abc, ,dce,234, , , abc 1 ,1 ,4 ' from dual
and i have translations for
abc,dce and abc 1 respecitvely as
X ,Y and Z
which i strore in a table as
1 abc X
2 dce Y
3 abc 1 Z
now i want to replace these tranlations in my original string such that my spaces etc are intact ( note that i cannot use the replace function directly)
MY final string should look like
1, ,3, , , X, ,Y,234, , , Z ,1 ,4
any pointers how i can achieve it.
Thanks

Answer 1

Prazy wrote:
Aketi Jyuuzou wrote:
I like recursive with clause B-)Yes but recursive with clause is being supported only from 11gR2 but OP is using *10gR2* B-)Hehe I was to start create SQL seeing OP's first Post only :-)
And I prefer recursive with clause than model clause B-)
And my prev SQL is wrong.
with t as(
select '1, ,3, , , abc, ,dce,234, , , abc 1 ,1 ,4 '
as str from dual),
repstr(ID,befo,aft) as(
select 1,'abc','X' from dual union
select 2,'dce','Y' from dual union
select 3,'abc 1','Z' from dual),
rec(str,LV) as(
select RegExp_Replace(a.str,
       '(,|^)( *)' || b.befo || '( *)(,|$)',
       '\1\2' || b.aft || '\3\4'),1
  from t a,repstr b
where b.ID=1
union all
select RegExp_Replace(a.str,
       '(,|^)( *)' || b.befo || '( *)(,|$)',
       '\1\2' || b.aft || '\3\4'),a.LV+1
  from rec a,repstr b
where a.LV+1 = b.ID)
select max(str) Keep(Dense_Rank Last order by LV) as str
  from rec;
STR
1, ,3, , , X, ,Y,234, , , Z ,1 ,4