Problem in converting Long Raw to Varchar2

Hi
I need to analyze the contents of a 'Long Raw ' field to proceed further. In an attempt to do that, using the following code, I could not see the data in a readable format.Kindly Help...
create or replace procedure lr2vc1 (lv_id number) is
c1 long raw;
note_varchar2 varchar2(32000);
begin
select value into c1 from Test_table where id=lv_id; /*value is the Long Raw field*/
note_varchar2 := utl_raw.cast_to_varchar2(c1);
insert into lr2vc (prid,lrvalue) values (lv_id, note_varchar2);
commit;
--dbms_output.put_line(c1);
end;
Thanks
Sandeep

Whats wrong with the answer given here?:
<br>
Problem while converting Long Raw data to Varchar2

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IS
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blob_len NUMBER;
l_pos number := 0;
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l_pos := 0;
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END LOOP;
l_pos := 0;
FOR i in 0..15 LOOP
    l_pos := dbms_lob.instr(DBMS_LOB.SUBSTR (l_blob, 2000, i*2000+1), IMPACTUS_PCODE.str_to_hex(lower(l_str)));
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    END IF;
END LOOP;
l_pos := 0;
FOR i in 0..15 LOOP
    l_pos := dbms_lob.instr(DBMS_LOB.SUBSTR (l_blob, 2000, i*2000+1), IMPACTUS_PCODE.str_to_hex(initcap(l_str)));
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END LOOP;
RETURN 0;
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v_file_blob     BLOB;
v_file_blob_new BLOB := NULL;
v_file_clob     CLOB;
v_file_size     INTEGER := dbms_lob.lobmaxsize;
v_dest_offset   INTEGER := 1;
v_src_offset    INTEGER := 1;
v_blob_csid     NUMBER := dbms_lob.default_csid;
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v_warning       INTEGER;
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                        v_file_size,
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                        v_src_offset,
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                IF v_warning = 0 THEN
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                END IF;
        END IF;
END;
END PCODE;
/Thanks
Nitin
Edited by: user13048604 on Jan 12, 2011 10:18 PM

First you may need to convert 'BLOB' which is of 'RAW' type to 'VARCHAR2'
using
utl_raw.cast_to_varchar2(urblob)Then you can make use of dbms_lob.instr,dbms_lob.substr etc...

Problem in converting Long Raw to Varchar2

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