How to spool the data with out space

Question

Hi, My version is 10g. I am trying to spool the file. this is my sql file looks like.
set pagesize 0
set heading on
set verify off
set linesize 32767
set trimspool on
set feedback off
set termout off
set colsep '~'
set underline off
set echo off
set term off
sET NEWPAGE 0
--SET SPACE 0
SET MARKUP HTML OFF SPOOL OFF
spool C:\text0728.txt;
SELECT DISTINCT a.m_name, a_code, a.p_id, a.p_name,
a.p_type, e._name, e.s_list from mname a,slist e
where a.p_id=e.p_id;
spool off;
my spool file looks like this
codename~matrix        ~888~nametarget           ~in~todao~~
codename1~matrix1        ~879~name           ~in~todao~
If we see matrix value have space *~matrix ~*
I want the value to spool with out the space i.e *~matrix~*
What to set for my requirment in sql file?
Thanks.

Answer 1

select a.m_name,
         regexp_replace(a_code,'[[:space:]]matrix[[:space:]]','matrix') as a_code,
         a.p_id,
         a.p_name,
         a.p_type,
         e._name, e.s_list *
from
     mname a,slist e
where
    a.p_id=e.p_id;