TEXT_IO ... replace first line

Question

Hello,
i have a small Problem with the TEXT_IO.PUT_LINE builtin
I want to write and read a .txt file with TEXT_IO
It workes fine but if i use put_line to write something in, it replace all inside my .txt file
My Question: Is it possible to replace only the first line inside my txt file
Example Forms:
Declare
     filename           varchar2(30) := 't:\test\Laufzettel.txt';
     file_handle TEXT_IO.FILE_TYPE;
     umrechnung number;
BEGIN
If :parameter.intervall is not null then
     file_handle := TEXT_IO.FOPEN(filename, 'W');
     umrechnung := :button.intervall;
     umrechnung := round(((umrechnung*60)*1000));
     TEXT_IO.PUT_LINE(file_handle,umrechnung);     
     TEXT_IO.FCLOSE(file_handle);
end if;
END;
and the .txt file looks like this:
6000
CT
CT2
Mammo
MR
US
Bestrahlung
MRT
NUK
SD
i want to replace the 6000 with another number without rewriting all the other entrys?!
Sorry for my bad English :)
Message was edited by:
user628271

Answer 1

If you are unix use grep command to replace the string. And this grep command can be called using host.
If you are in Windows , create a new file from the original and while creating you
can replace which ever line you needed.
Once you create the new file , delete the original file using host command.
Once you delete the old file, copy the new file to the original file name using host command.
Rajesh Alex