题解 | #确定已售出产品项 BR01 的总数#
确定已售出产品项 BR01 的总数
https://www.nowcoder.com/practice/a225d8a7bc4f496283fe8e21293e841c
# select sum(oi.quantity) as items_ordered # from OrderItems as oi # where oi.prod_id like '%BR01'; select sum(oi.quantity) as items_ordered from OrderItems as oi group by oi.prod_id having oi.prod_id = 'BR01';
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