表a里有字段 id(自增),order_id(订单id),goods_sn(产品编码),其他字段... 查询产品编码出现最多的前10个产品的语句怎么写呀？菜鸟求助
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sql codeselect *, count(goods_sn) as counter from table group by goods_sn order by goods_sn desc
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select count(*) as ct from a order by id desc group by goods_sn;
试看看
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sql code select count(*) as counter from table group by goods_sn order by goods_sn desc limit 10