oracle找到最畅销的产品和查看详细信息

Question

问题

显示最畅销的欧洲汽车的详细信息（即制造商名称，型号名称，类型） 模型。

表：

制造商

(manufacturerID, name, region)

模型

(modelNo, name, type, previousModel, manufacturerID)

汽车

(VIN, dateAcquired, yearBuilt, purchasedPrice, askingPrice,
currentMileage, modelNo)

SalesTransaction

(VIN, custID, agentID, dateOfSale, agreedPrice)

我的查询尝试：

select ma.name as "Manufacturer Name", mo.name as "Model Name", mo.type as "Model Type"
from manufacturer ma, model mo, 
inner join car c on mo.modelno = c.modelno
inner join salestransaction st on c.vin = st.vin
where ma.manufacturerid = mo.manufacturerid
having (
        select st.vin
        from salestransaction st
        inner join car c on st.vin = c.vin
        group by st.vin
        order by count(*) desc
        )
rownum=1;

我觉得我犯了多个错误，因为我不太确切知道如何解决这个问题。

任何帮助将不胜感激。

Answer 1

我认为你在寻找类似的东西：

DELETE * FROM tblTransactions
WHERE TxCode = "ICTS" 
  AND transaction_date IN (SELECT transaction_date 
                           FROM tblTransactions
                           WHERE TxCode = "IRFC")`

我没有测试，所以你需要检查语法和表名。