SQL组视图查询并与其他表连接

Question

if

当我尝试获取Items.Iteminfo时，会发生错误。任何人都可以帮助我错了..

Answer 1

您必须将SELECT列表中的列包含在GROUP BY子句中。

    Select PurchasesBody.ItemId, 
       Items.Iteminfo, Sum(TTLQtyLose) As PurQty, 
       Avg(PerUnitCost) AS AvgRate, Sum(TTLValue) AS NetValue 
     From PurchasesBody 
       left Join Items On PurchasesBody.ItemId=Items.ItemId 
     Group By PurchasesBody.ItemId,Items.Iteminfo