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SQL>
SQL> create or replace procedure file_dump( p_directory in varchar2,p_filename in varchar2 )
2 as
3 type array is table of varchar2(5) index by binary_integer;
4
5 l_chars array;
6 l_bfile bfile;
7 l_buffsize number default 15;
8 l_data varchar2(30);
9 l_len number;
10 l_offset number default 1;
11 l_char char(1);
12 begin
13 l_chars(0) := '\0';
14 l_chars(13) := '\r';
15 l_chars(10) := '\n';
16 l_chars(9) := '\t';
17
18 l_bfile := bfilename( p_directory, p_filename );
19 dbms_lob.fileopen( l_bfile );
20
21 l_len := dbms_lob.getlength( l_bfile );
22 while( l_offset < l_len )
23 loop
24 l_data := utl_raw.cast_to_varchar2(dbms_lob.substr( l_bfile, l_buffsize, l_offset ));
25
26 for i in 1 .. length(l_data)
27 loop
28 l_char := substr(l_data,i,1);
29
30 if ascii( l_char ) between 32 and 126
31 then
32 dbms_output.put( lpad(l_char,3) );
33 elsif ( l_chars.exists( ascii(l_char) ) )
34 then
35 dbms_output.put( lpad( l_chars(ascii(l_char)), 3 ) );
36 else
37 dbms_output.put( to_char(ascii(l_char),'0X') );
38 end if;
39 end loop;
40 dbms_output.new_line;
41
42 l_offset := l_offset + l_buffsize;
43 end loop;
44 dbms_lob.close( l_bfile );
45 end;
46 /
Procedure created.
SQL>
SQL>
SQL> exec file_dump( 'MY_FILES', 'demo17.dat' );
BEGIN file_dump( 'MY_FILES', 'demo17.dat' ); END;
*
ERROR at line 1:
ORA-22285: non-existent directory or file for
FILEOPEN operation
ORA-06512: at "SYS.DBMS_LOB", line 523
ORA-06512: at "JAVA2S.FILE_DUMP", line 19
ORA-06512: at line 1
SQL>
SQL> --
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