How to perform Text length more than 4000 bytes

Question

I want to read each row from txt file
and used utl_file pacage to concat contents into a variable,
the variable datatype is varchar2(4000), so text length can't more than 4000 bytes,
but I wish get full text from txt file, How can I do?

Answer 1

Thans! Detlev.
I have a code :
PROCEDURE read_file( path in varchar2, filename in varchar2, msg in out varchar2) AS
data_line varchar2(4000);
ifile utl_file.file_type;
BEGIN
ifile := utl_file.fopen(path,filename,'R');
LOOP
utl_file.get_line( ifile, data_line);
msg := msg | | rtrim(data_line);
END LOOP;
utl_file.fclose(ifile);
EXCEPTION
WHEN no_data_found THEN
utl_file.fclose(ifile);
END;
My question is
1. The msg length can't more than 4000
2. I use utl_raw.cast_to_raw function, that can't cast varchar2 to raw if varchar2 length more than 2048
3. If I want to change the data type varchar2 to raw,
the utl_raw.concat function can't use Loop ....end loop clause,
So that only use utl_raw.concat(ra1, ra2,ra3,ra4,ra5, ... ra12)
I want to concat all line to a raw datatype from text file , How can I do?