我很好的参考已经 How to filter my results so it shows the last four months of data - sql 到目前为止,我有 SELECT ItemCode, SUM(QuantityOrdered) AS Total_Quantity
FROM OrderDetail
GROUP BY ItemCode
ORDER BY SUM(Qua
的总和(数量)我想显示每个月的金额数量当月相应 ItemCode | October | November | December | January
PZ 0 0 12 36
到目前为止,我的查询看起来像 而我的SQL是 SELECT Detail.ItemCode
,SUM(Detail.QuantityOrdered) AS Total_Quantity