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CREATE TABLE t ([item] varchar(5), [qty] int, [batch] varchar(4), [type] int) ; INSERT INTO t ([item], [qty], [batch], [type]) VALUES ('item1', 2, 'ten', 111), ('item1', 2, 'ten', 111), ('item1', 2, 'ten', 111), ('item1', 2, 'ten', 101), ('item1', 4, 'ten', 111), ('item2', 2, 'five', 111), ('item2', 2, 'five', 101), ('item2', 2, 'five', 111) ;
8 rows affected
select item ,qty ,batch ,type from ( select item ,qty ,batch ,type ,row_number() over(partition by item,qty,batch order by item) as rn ,count(case type when 111 then 1 end) over (partition by item,qty, batch order by item) - count(case type when 101 then 1 end) over (partition by item,qty, batch order by item) as dif from t ) t2 where rn <= dif and type = 111
item
qty
batch
type
item1
2
ten
111
item1
2
ten
111
item1
4
ten
111
item2
2
five
111
Warning: Null value is eliminated by an aggregate or other SET operation.