Help to query long volum in all_views

Question

Hi Gurus,
background :
After a upgrade from 8.1.7 to 9.0.2 we found that some custom views have ',,' in them, but they are still showing in the 'VALID' status.
Problem:
In order to find all bad views I am trying to run something like
SQL/> select view_name from all_views where text like '%,,%'
but it fails with
ERROR at line 1:
ORA-00932: inconsistent datatypes: expected NUMBER got LONG
I tried running some thing like
set serveroutput on size 10000
declare
cursor c_dbv is
select owner,view_name,text
from all_views ;
searchstring varchar2(100) := ',,';
begin
for ct in c_dbv loop
dbms_output.put_line(ct.text);
if instr(lower(ct.text),lower(searchstring)) > 0 then
dbms_output.put_line(ct.owner||'.'||ct.view_name);
else
dbms_output.put_line ('No match' );
end if;
end loop;
end;
it is also not helping ; could some one pleas suggest an alternative way
Regards

Answer 1

SQL> create or replace view my_test_view
  2  as
  3  select ',,' c from dual
  4  /
View created.
SQL> declare
  2     cursor c
  3     is
  4     select view_name,text
  5       from all_views;
  6  begin
  7     for i in c
  8     loop
  9             if instr(i.text,',,') > 0
10             then
11                     dbms_output.put_line(i.view_name);
12             end if;
13     end loop;
14  end;
15  /
MY_TEST_VIEW
PL/SQL procedure successfully completed.