ORA-01427: single-row subquery returns more than one row - issue

Question

update dsalesinvoicehdr set paymentterms = ( select pt.termcode from dsalesinvoicehdr dsh
       inner join mg_subledger mp on mp.mg_subledgerid = dsh.customer 
       inner join mg_partytbill mb on mb.bsubledger = mp.subledgercode  
       left join payterm pt on pt.paytermid = mb.paymentterm)

ORA-01427: single-row subquery returns more than one row

how to resolve this issue. pls help

Answer 1

Will cause this error because your subquery returns multiple pieces of information Your subquery return multi-row data

You can use UPDATE and JOIN

update
( 
select pt.termcode,dsh.paymentterms 
from dsalesinvoicehdr dsh
inner join mg_subledger mp on mp.mg_subledgerid = dsh.customer 
inner join mg_partytbill mb on mb.bsubledger = mp.subledgercode  
left join payterm pt on pt.paytermid = mb.paymentterm
) t
set  t.termcode= t.paymentterms  

Answer 2

Use update and join mate!!

update
( 
   select pt.termcode,dsh.paymentterms 
   from dsalesinvoicehdr dsh
   inner join mg_subledger mp on mp.mg_subledgerid = dsh.customer 
   inner join mg_partytbill mb on mb.bsubledger = mp.subledgercode  
   left join payterm pt on pt.paytermid = mb.paymentterm
) tab
set  tab.termcode= tab.paymentterms 

Answer 3

You need to select one of the values. To common methods are an aggregation function or where rownum = 1 :

update dsalesinvoicehdr
    set paymentterms = (select pt.termcode
                        from dsalesinvoicehdr dsh inner join
                             mg_subledger mp
                             on mp.mg_subledgerid = dsh.customer inner join
                             mg_partytbill mb
                             on mb.bsubledger = mp.subledgercode join
                             payterm pt
                             on pt.paytermid = mb.paymentterm
                        where rownum = 1
                       );

You don't need the left join in the subquery. Non-matches will result in NULL anyway.