'Exclude returned orders & Home Office orders from the orders dataset
I am trying to Exclude returned orders & Home Office orders from the orders dataset
I have 2 datasets order and returns
in order dataset it's order summary in returns dataset there is column return yes or no order_id , region
select * from orders where order_id not in
(select a.order_id, b.returned
from orders a
join returns b
on a.order_id = b.order_id
where a.category = 'home_office') ;
while doing this i am getting this error Error Code: 1241. Operand should contain 1 column(s)
i just want to figure out how to exclude return= yes orders using join
i want order table as it is however if based on table 2 return if order has been returned it should be excluded from table 1 when i see results
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