Error ORA-02070: while creating view - Help Needed.

Question

ISSUE:
~~~~~
When i am creating the view for the below SQL script I am getting the error as
==>ORA-02070:DATABASE DOES NOT SUPPORT OPERATOR NLS_CHARSET_DECL_LEN in this context <==
Sql script
~~~~~~~
create or replace view test11 as
WITH x AS
(SELECT column_name,
DECODE (column_id, 7,to_char(eff_to_dt,'MMDDRRRR'),
                                   8,active_flg,
                                   9,nm_long,
                                   10,nm_short,
                                   11,rplcmnt_bu_id,
                                   12,pc_cc_cd,
                                   13,tax_cd,
                                   14,bu_type_cd,
                                   15,ledger_cd) COL_VAL_NEW,
'' COL_VAL_OLD,
                                   fre_id,
                                   bu_id,
eff_from_dt,
rec_eff_from_dt,
                                   rec_type
FROM BUSINESS m, all_tab_columns u
WHERE table_name = 'BUSINESS'
AND column_name in ('EFF_TO_DT'
,'ACTIVE_FLG'
,'NM_LONG'
,'NM_SHORT'
,'RPLCMNT_BU_ID'
,'PC_CC_CD'
,'TAX_CD'
,'BU_TYPE_CD'
,'LEDGER_CD')
AND rec_type ='A'
ORDER BY rec_eff_from_dt
y as
(SELECT column_name,
DECODE (column_id, 7,to_char(eff_to_dt,'MMDDRRRR'),
                                   8,active_flg,
                                   9,nm_long,
                                   10,nm_short,
                                   11,rplcmnt_bu_id,
                                   12,pc_cc_cd,
                                   13,tax_cd,
                                   14,bu_type_cd,
                                   15,ledger_cd) COL_VAL_NEW,
'' COL_VAL_OLD,
                                   fre_id,
                                   bu_id,
eff_from_dt,
rec_eff_from_dt,
                                   rec_type
FROM BUSINESS m, all_tab_columns u
WHERE table_name = 'BUSINESS'
AND column_name in ('EFF_TO_DT'
,'ACTIVE_FLG'
,'NM_LONG'
,'NM_SHORT'
,'RPLCMNT_BU_ID'
,'PC_CC_CD'
,'TAX_CD'
,'BU_TYPE_CD'
,'LEDGER_CD')
AND rec_type <> 'A'
ORDER BY rec_eff_from_dt
a as (select y.column_name,
y.col_val_new,
x.col_val_new col_val_old,
y.fre_id,
y.bu_id,
y.eff_from_dt,
min(y.rec_eff_from_dt),
y.rec_type
from y, x
where (y.fre_id = x.fre_id and y.bu_id = x.bu_id and y.eff_from_dt = x.eff_from_dt and y.column_name = x.column_name
and nvl(y.col_val_new,'^') <> nvl(x.col_val_new,'~') and y.rec_type ='C')
group by y.column_name,
y.col_val_new,
x.col_val_new,
y.fre_id,
y.bu_id,
y.eff_from_dt,
y.rec_type)
select * from a
union all
select y.column_name,
y.col_val_new,
x.col_val_new,
y.fre_id,
y.bu_id,
y.eff_from_dt,
min(y.rec_eff_from_dt),
y.rec_type
from y, x
where (y.fre_id = x.fre_id and y.bu_id = x.bu_id and y.eff_from_dt = x.eff_from_dt and y.column_name = x.column_name
and y.col_val_new = x.col_val_new and y.rec_type ='D')
group by y.column_name,
y.col_val_new,
x.col_val_new,
y.fre_id,
y.bu_id,
y.eff_from_dt,
y.rec_type
union all
SELECT column_name,
DECODE (column_id, 7,to_char(eff_to_dt,'MMDDRRRR'),
                                   8,active_flg,
                                   9,nm_long,
                                   10,nm_short,
                                   11,rplcmnt_bu_id,
                                   12,pc_cc_cd,
                                   13,tax_cd,
                                   14,bu_type_cd,
                                   15,ledger_cd) COL_VAL_NEW,
'' COL_VAL_OLD,
                                   fre_id,
                                   bu_id,
eff_from_dt,
rec_eff_from_dt,
                                   rec_type
FROM BUSINESS m, all_tab_columns u
WHERE table_name = 'BUSINESS'
AND column_name in ('EFF_TO_DT'
,'ACTIVE_FLG'
,'NM_LONG'
,'NM_SHORT'
,'RPLCMNT_BU_ID'
,'PC_CC_CD'
,'TAX_CD'
,'BU_TYPE_CD'
,'LEDGER_CD')
AND rec_type ='A'
The sql script is nothing but to compare the record to get the attribute level changes.
Please help me out why the error is being caused.
Thanks in advance.

Answer 1

Is one of the used table/view referencing a non-Oracle database with a database link ?
ORA-02070: database [i]stringstring does not support string in this context
Cause: The remote database does not support the named capability in the context in which it is used.
Action: Simplify the SQL statement.