Question

I have created a VIEW with a column containing aggregated values(stores the output in varchar2 data type). Is there a way for me to check which records exceeds the maximum limit, for example varchar2(4000)? I haven’t been able to create a table due to the error “character string buffer too small”. I was thinking that if I could know how many records exceed the character length, then I could probably try to use substring.

Answer 1

Since you are creating a view.
It will be having a definition with the select statement

so you can

select <columns>,length(column you have to check)
from <tableName>
group by <columns>
having length<column> > 4000;