E:photo>dir
Volume in drive E is New Volume
Volume Serial Number is F816-C39F

Directory of E:photo

2007-10-31 11:00 <DIR> .
2007-10-31 11:00 <DIR> ..
2007-08-13 16:19 1,212,681 flower.jpg
1 File(s) 1,212,681 bytes
2 Dir(s) 40,406,614,016 bytes free

----------------------------------------------------
SQL> conn a/a
Connected.

grant create any directory to a;
grant create any library to a;
create or replace directory photo_dir as 'e:photo';
create table photos (blob_column blob);

declare
a_blob blob;
a_bfile bfile := bfilename('PHOTO_DIR','flower.jpg');
begin
insert into photos values (empty_blob()) returning blob_column into a_blob;
dbms_lob.fileopen(a_bfile);
dbms_lob.loadfromfile(a_blob,a_bfile,dbms_lob.getlength(a_bfile));
dbms_lob.fileclose(a_bfile);
commit;
end;
/

PL/SQL procedure successfully completed.

SQL> select dbms_lob.getlength(blob_column) from photos;

DBMS_LOB.GETLENGTH(BLOB_COLUMN)
-------------------------------
1212681

气动蝶阀;气动蝶阀 气动蝶阀;