notes/db/sql/oracle/plsql/blob.txt

alter session set current_schema=WIN_SS;
set serveroutput on;
-- format wrapped;
declare
  l_blob blob;
  l_blob_len number;
  l_amount number := 2000;
  l_pos number;
begin
  select content into l_blob from cb_file_repository where name = 'config' and language_id='en';
  l_blob_len := dbms_lob.getlength(l_blob);
  l_pos := 1;
  while l_pos < l_blob_len loop
    dbms_output.put(utl_raw.cast_to_varchar2(dbms_lob.substr(l_blob, l_amount, l_pos)));
    l_pos := l_pos + l_amount;
  end loop;
  dbms_output.put_line('config blob len: ' || l_blob_len);
end;


alter session set current_schema=WIN_SS;
select
    cbfr1.name            as "lexicon_name",
    cbfr1.language_id     as "language_id"
from
    cb_file_repository cbfr1,
    cb_file_repository cbfr2
where
    cbfr1.type ='lexicon' and cbfr1.kind != 1 and
    cbfr2.type ='config' and instr(DBMS_LOB.SUBSTR(cbfr2.content, 2001), cbfr1.name) > 1
;