Updating a blob field in access db

hi all
i need to update a blob field (containing images) in an access db
i tried with this code but didn't work:
PreparedStatement ps=c.prepareStatement("UPDATE "+tab_name+" SET "+col+" = ? WHERE "+key+"="+key_val);
ps.setBytes(1, rs.getBytes("F_VAL"));anyone could help me?
thanx
sandro

ok, i changed my code in this way:
ResultSet rs2=to.executeQuery("SELECT * FROM TABLE WHERE KEY= 'mykey'");
                            if(rs2.next())
                                Blob blob=rs2.getBlob("F_VAL");
                                InputStream in=blob.getBinaryStream();
                                rs2.updateBinaryStream(col, in, in.available());
                                rs2.updateRow();
                            }and nothing happens, my file in this row isn't updated!!!
if i write
ResultSet rs2=to.executeQuery("SELECT * FROM TABLE WHERE KEY= 'mykey' for update");i get an SQLEXception that tell me that access can't implement this feature
anyone could help me?
it's not possible to update a Blob in access?
thanks

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glenn
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Edited by: gconley on Sep 25, 2008 9:51 PM

solved it myself - problem was with the gif

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mail_id:
[email protected]

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