Fetching LongRAW over DB link results in ORA-1406 error

Question

How to FETCH LONG RAW values from remote DB into PLSQL cursor variable.
Following is my sample code, where in column MESSAGE_xxx_FILE in XXXX table is defined as LONG RAW.
++++++++++++++++++++++++
declare
CURSOR cur IS SELECT MESSAGE_xxx_FILE FROM xxxx;
l_MESSAGE_xxx_FILE LONG RAW;
l_error VARCHAR2(500) := NULL;
cnt number;
begin
open cur;
loop
dbms_output.put_line ('befire fetcg ');
fetch cur into l_MESSAGE_xxx_FILE;
dbms_output.put_line ('after fetcg ');
exit when cur_bipi_e2b_ach%notfound;
cnt := cur_bipi_e2b_ach%ROWCOUNT;
END LOOP;
close cur;
EXCEPTION
WHEN OTHERS THEN
l_error := SQLCODE||'-'||SQLERRM;
dbms_output.put_line ('ERROR AT END '||SUBSTR(l_error,1,475)||' at '||cnt);
END;
++++++++++++++++++++++++
This is just a sample code. My actual requirement is to get the LONG RAW value over DB LINK, that is, my cursor would be CURSOR cur IS SELECT MESSAGE_xxx_FILE FROM xxxx@db_link;
Message was edited by:
vishnuvv

Answer 1

You can not read/write LONG/LONG RAW columns through DB Link.
You should consider having CLOB/BLOB instead.