Update was encountered with ORA-1427

Question

Hi all,
i have the following query :-
update ot_so_item A set (A.soi_flex_03 )
= ( select pwh_no from ot_pwo_head, ot_so_item, ot_so_head
where pWH_sys_id = soi_pwh_sys_idid
AND SOH_SYS_ID = SOI_SOH_SYS_ID
and soh_txn_code = 'PSO'
AND SOI_FLEX_03 IS NULL
AND soh_dt > to_date('01/01/2010', 'dd/mm/yyyy') )
WHERE A.SOI_FLEX_03 IS NULL
AND A.SOI_SOH_SYS_ID IN ( SELECT SOH_SYS_ID FROM ot_so_head WHERE A.SOI_SOH_SYS_ID = SOH_SYS_ID AND SOH_TXN_CODE = 'PSO' )
it was returned with ORA-1427 but when I try to query the sub-query which the cursor stop when error hits, I have putting the count command to look for which lines is causing duplicate entry is null.
select pwh_no from ot_pwo_head, ot_so_item, ot_so_head
where pWH_sys_id = soi_pwh_sys_id
AND SOH_SYS_ID = SOI_SOH_SYS_ID
and soh_txn_code = 'PSO'
AND SOI_FLEX_03 IS NULL
AND soh_dt > to_date('01/01/2010', 'dd/mm/yyyy') )
GROUP BY PWH_NO
HAVING COUNT(PWH_NO) > 1 )
Not record is return with count > 1. Where is the error actually ?
Thanks.
Lim

Answer 1

my oracle version is 10.g
here is the output running at sql plus
SQL*Plus: Release 8.0.6.0.0 - Production on Mon Oct 10 14:18:35 2011
(c) Copyright 1999 Oracle Corporation. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> update ot_so_item A set (A.soi_flex_03 )
2 = ( select c.pwh_no from ot_pwo_head c, ot_so_item b, ot_so_head bb
3 where c.pWH_sys_id = b.soi_pwh_sys_id
4 --and soh_sys_id = A.soi_soh_sys_id
5 AND bb.SOH_SYS_ID = b.SOI_SOH_SYS_ID
6 and bb.soh_txn_code = 'PSO'
7 AND b.SOI_FLEX_03 IS NULL
8 AND bb.soh_dt > to_date('01/01/2010', 'dd/mm/yyyy') )
9 WHERE A.SOI_FLEX_03 IS NULL
10 AND A.SOI_SOH_SYS_ID IN ( SELECT o.SOH_SYS_ID FROM ot_so_head o WHERE A.SOI_SOH_SYS_ID = o.SOH_
SYS_ID AND o.SOH_TXN_CODE = 'PSO' );
= ( select c.pwh_no from ot_pwo_head c, ot_so_item b, ot_so_head bb
ERROR at line 2:
ORA-01427: single-row subquery returns more than one row
Rgds
Lim