How to write data to existing file using spool command?

Hi,
I am calling a stored procedure from a shell script. This stored procedure is having a CLOB object as an OUT parameter. How to write the data in CLOB object a existing file which is there in my client system. Below is the shell and sql scripts.
Shell script
( echo "hello" ) > /root/file.txt
sqlplus -s $user/$pass@$tns @/root/proc.sql /root/file.txt << EOF
EOFSQL script
set pages 0
set trimspool off
set serveroutput off
set feedback off
set term off
set echo off
variable out CLOB
define file='&1'
begin
pack.proc(:out);
end;
spool &file
select :out from dual;
spool offThis code writes contents of the OUT variable to file.txt, but my existing data ('hello') is lost. Please help me.
I figured the it...Use append in the spool command... :)
Edited by: Balaji on Jul 19, 2012 8:55 PM

>
Hi Balaji
I figured the it...Use append in the spool command... :Please mark the thread as answered as per the FAQ.
Paul...

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