How to SQL Default for a EFF field in shipment line level using the order number ?

Summary:

There is a requirement to default value in the shipment line level additional information. The value needs to be fetched from the sales order line level EFF. I have the below SQL query to fetch the data when i have the order number. How can i pass the respected order number in the particular shipment line:

SELECT dfleb.ATTRIBUTE_CHAR1 FROM DOO_FULFILL_LINES_EFF_B dfleb, DOO_FULFILL_LINES_ALL dfla ,DOO_HEADERS_ALL dha, doo_lines_all dla
where dfla.fulfill_line_id=dfleb.fulfill_line_id 
and dha.header_id=dla.header_id
and dla.line_id=dfla.line_id
and dha.order_number=****
and CONTEXT_CODE='xxxxxxxx'
and dla.line_number=1