通过发票编号取凭证编号,返回多行值，拼接到一起
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2022-04-15 15:12:53
function GET_DOC_SEQUENCE_VALUE(P_INVOICE_NUM varchar2) return varchar2 is V_DOC_SEQUENCE_VALUE varchar2(2000); cursor cur_doc (l_invoice varchar2 )is ......
function get_doc_sequence_value(p_invoice_num varchar2) return varchar2 is
v_doc_sequence_value varchar2(2000);
cursor cur_doc (l_invoice varchar2 )is
select doc_sequence_value
from ap_invoices_all
where invoice_num = l_invoice
and cancelled_date is null;
l_count number:=0;
begin
begin
select count(*)
into l_count
from ap_invoices_all
where invoice_num = p_invoice_num
and cancelled_date is null;
exception
when others then
v_doc_sequence_value := '';
end;
for l_cur_doc in cur_doc(p_invoice_num) loop
if l_count = 1 then
v_doc_sequence_value:=l_cur_doc.doc_sequence_value;
else
if v_doc_sequence_value is null then
v_doc_sequence_value:=l_cur_doc.doc_sequence_value;
else
v_doc_sequence_value:=v_doc_sequence_value||','||l_cur_doc.doc_sequence_value;
end if ;
end if ;
end loop ;
return v_doc_sequence_value;
end;