T-SQL组通过使数据不是SUM

Question

我有一个查询，我希望按年度计算所有供应商的购买量。但是，我的结果并没有像我想要的那样由供应商汇总。我相信这是因为我必须把IJDATE放在GROUP BY中。有什么建议我可以解决这个问题吗？

SELECT
    YEAR(ij.IJDATE) AS YearPurchased,
    ISNULL(SUM(ij.IJCOST * ij.IJQTY), 0) AS YearlySpend,
    IJVEND AS Vendor
FROM
    dbo.S2K_IJ ij
WHERE
    ij.IJTYPE IN ('I', 'ID')
GROUP BY
    ij.IJDATE,
    ij.IJVEND
ORDER BY
    YearPurchased,
    Vendor

Answer 1

尝试将您的分组更改为：

GROUP BY
    YEAR(ij.IJDATE),
    ij.IJVEND