Oracle - Add rows together in one field - sql

Question

Using the following code. Keep getting the following error
Select distinct
ship_L.ship_ID,
ship_L.Item_Num,
C.sku,
C.ob_oid,
c.Container
From (
Select distinct
ob_oid,
sku,
substr((ltrim(sys_Connect_By_Path(trim(to_Cont),' / '))),2,(length(ltrim(sys_Connect_By_Path(trim(to_Cont),' / '))))) as Container
From (
Select distinct
Ob_oid,
sku,
To_Cont,
row_number() Over (Partition by sku order by to_Cont) -1 as seq
From (
Select distinct
ob_oid,
sku,
To_Cont
from elite_76_w1.ITH_f
--Where ob_oid = '237472'
-- and sku = '64154'
)
)
Where connect_By_Isleaf = 1
Connect by seq = Prior seq +1 and sku = Prior sku
Start with seq = 1
) C
Left Join elite_76_D.ship_L
on ship_L.ship_id = C.ob_oid
and ship_L.item_num = C.sku
WHere C.ob_oid = '237472'
and C.sku = '64154'
Getting this error:
ORA-01489: result of string concatenation is too long 01489. 00000 - " result of string concatenation is too long" *Cause: String concatenatin result is more than the maximun size. * Action: Make sure that the result is lees than the maximum size. Vendor Code 1489Error at line 3.
Start with:
SKU Location
64154 A153945
64154 A153943
64154 A153947
64154 A153946
64154 A153944
Need:
64154 A153944 / A153945 / A153946 / A153947
Thank you for all the help,
David

Answer 1

ORA-01489: result of string concatenation is too long means that part of your SQL is generating a string longer than 4000 characters, which is the limit of a VARCHAR2 in SQL.
You can't truncate the string in SQL (e.g. with SUBSTR), because SQL needs to construct the string before it sends it to the SUBSTR function; and it bails because it exceeds the limit.
To solve this you'll probably need to create your own PL/SQL function, in which you have a greater length limit (32k) for VARCHAR2s.