with the code TimHall given, I got error with below lines

Code:
  dbms_lob.loadFromFile(dest_lob => l_clob,
                        src_lob  => l_bfile,
                        amount   => dbms_lob.getLength(l_bfile));
ERROR at line 17:
ORA-06550: line 17, column 3:
PLS-00306: wrong number or types of arguments in call to 'LOADFROMFILE'

When I changed the line to
Code:
  dbms_lob.loadFromFile(l_clob,
                        l_bfile,
                        dbms_lob.getLength(l_bfile),1,1);
I got error
ERROR at line 35:
ORA-06550: line 35, column 45:
PLS-00306: wrong number or types of arguments in call to 'MAKENODE'

Is this something not installed on my database ?

regards,
Sudhi