SQL & PL/SQL

Hello,

I am trying to insert long hex string into blob column. As it does not allow to do that using plain sql statement due to 4000 limit of characters. I found one way of doing that given as below.

declare
  l_cursor number := dbms_sql.open_cursor;
  l_ignore number;
begin
  dbms_sql.parse( l_cursor, 'INSERT INTO table1 VALUES (:id, :name, :data, :type)', dbms_sql.native );
  dbms_sql.bind_variable( l_cursor, ':id', 154);
  dbms_sql.bind_variable( l_cursor, ':name', 'name');
  dbms_sql.bind_variable_raw( l_cursor, ':data', '0001000000FFFFFFFF.........');--this is creating problem
  dbms_sql.bind_variable( l_cursor, ':type', 0);
  l_ignore := dbms_sql.execute( l_cursor );  
  dbms_sql.close_cursor( l_cursor );
end;

But I am getting below error while executing the block in SQL Developer.

Error report:
ORA-01460: unimplemented or unreasonable conversion requested
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1202
ORA-06512: at "SYS.DBMS_SQL", line 323
ORA-06512: at line 10
01460. 00000 -  "unimplemented or unreasonable conversion requested"
*Cause:    
*Action:

Can any one guide me resolving this problem? I appreciate your inputs.

Thanks,
Jignesh