显示线从同一列中过滤的不同值
我有一个系统,在该系统中,我们在列中注册,如果是账单,销售订单,发票,采购订单等。这意味着对于相同的ID,我们可以进行1个以上的交易(例如,ID1可以有1行的收入和2行成本):
ID TYPE AMOUNT
1 Bill 5
1 Bill 2
1 PurcOder 2
2 SAlesOrder 1
等
我想提取全部,每种ID类型的1行,每个类型类别的总和,我该怎么办?
谢谢
I have a system in which in a column, we register if it is a bill, a sales order, an invoice, a purchase order etc. This means that for the same ID we can have more than 1 transaction (for example, ID1 could have 1 lines of revenues and 2 lines of costs):
ID TYPE AMOUNT
1 Bill 5
1 Bill 2
1 PurcOder 2
2 SAlesOrder 1
etc
I'd like to extract all, showing 1 line per type of each ID, with the sum for each type category, how could I do it?
Thank you
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从iD中选择来自table_name组的sum(量)
SELECT SUM(AMOUNT) from table_name GROUP BY ID, TYPE