/**
     * Retrieves the value of the designated column in the current row
     * of this <code>ResultSet</code> object as a <code>Blob</code> object
     * in the Java programming language.
     *
     * @param colName the name of the column from which to retrieve the value
     * @return a <code>Blob</code> object representing the SQL <code>BLOB</code> 
     *         value in the specified column
     * @exception SQLException if a database access error occurs
     * @since 1.2
     */
    Blob getBlob(String colName) throws SQLException;


/**
     * Retrieves a stream that can be used to write to the <code>BLOB</code> 
     * value that this <code>Blob</code> object represents.  The stream begins
     * at position <code>pos</code>.
     *
     * @param pos the position in the <code>BLOB</code> value at which
     *        to start writing
     * @return a <code>java.io.OutputStream</code> object to which data can 
     *         be written
     * @exception SQLException if there is an error accessing the
     *            <code>BLOB</code> value
     * @see #getBinaryStream
     * @since 1.4
     */
    java.io.OutputStream setBinaryStream(long pos) throws SQLException;