对于TSQL中枢轴中的平均值,四舍五入到两位小数
我想重点回答以下问题:对于TSQL中枢轴中的平均值,四舍五入到两位小数,tsql,Tsql,我想重点回答以下问题: SELECT CategoryID, AVG(UnitPrice) FROM Products GROUP BY CategoryID; 把它变成 Per Category 1 2 3 4 5 6 7 8 Average Unit Price 37.98 23.06 25.16 28.73 20.25 54.01 32.37
SELECT CategoryID, AVG(UnitPrice)
FROM Products
GROUP BY CategoryID;
把它变成
Per Category 1 2 3 4 5 6 7 8
Average
Unit
Price 37.98 23.06 25.16 28.73 20.25 54.01 32.37 20.68
如何计算源查询中的平均值? 然后在进行转换时将其转换为十进制
SELECT
'Average Unit Price' AS [Per Category], Pvt.*
FROM
(
SELECT CategoryID, CAST(AVG(UnitPrice) AS DECIMAL(16,2)) as AvgUnitPrice
FROM dbo.Products
WHERE CategoryID BETWEEN 1 AND 8
GROUP BY CategoryID
) AS Src
PIVOT
(
MAX(AvgUnitPrice)
FOR CategoryID IN ([1],[2],[3],[4],[5],[6],[7],[8])
) AS Pvt
@如果一个答案解决了你的问题,你应该把它标记为接受,这样其他人就会知道问题已经解决了。