using not with regexp_like
select x.v
, case when not regexp_like( x.v , '\.[[:digit:]]{4}$') then 'ERROR' else 'OK' end mess
from
(
select 4.05 v from dual
union
select 4.0534 v from dual
)x
---------------------------
ORA-00920: invalid relational operator
Can I use this? I want to get answer that is below
------------------------
4.05 ERROR
4.0534 OK
But I am getting relational operator error. How to fix this?