Function to get the item po description by passing po_header_id and po_line_id as parameters

CREATE OR REPLACE FUNCTION Getitempodesc(p1 IN NUMBER, p2 IN NUMBER) RETURN VARCHAR2 AS

v_tax VARCHAR2(240);

BEGIN

SELECT B.ITEM_DESCRIPTION  INTO v_tax FROM Po_headers_all A,

Po_lines_all B

WHERE A.PO_HEADER_ID=B.PO_HEADER_ID

AND A.PO_HEADER_ID=P1

AND B.PO_LINE_ID=P2;

RETURN(v_tax);



EXCEPTION



WHEN NO_DATA_FOUND THEN

RETURN (NULL);

END;
/