Access 中的 ConcatRelated()，使用两个键 [英] ConcatRelated() in Access, using two keys

问题描述

我找到了 ConcatRelated() 函数 [http://allenbrowne.com/func-concat.html]，它似乎可以做我想做的事，但我需要输入两个键而不是一个.

I found the ConcatRelated() function [http://allenbrowne.com/func-concat.html] and it seems to do what I want it to, but I need to feed in two keys rather than just one.

我的数据看起来像:

Chain    Store      Warehouse
Walmart  Tucson     Phoenix
Walmart  Tucson     Flagstaff
Walmart  Phoenix    Phoenix
Bi-Lo    Phoenix    Phoenix
Bi-Lo    Phoenix    Flagstaff

而且我需要基于 Chain 和 Store 进行连接:

And I need to concatenate based on both the Chain and the Store:

Chain    Store      Warehouses
Walmart  Tucson     Phoenix, Flagstaff
Walmart  Phoenix    Phoenix
Bi-Lo    Phoenix    Phoenix, Flagstaff

你能帮我在括号内使用我需要使用的参数吗?

Can you help me with the arguments I need to use within the brackets?

推荐答案

你可以这样写:

SELECT Distinct
  tbl.Chain,
  tbl.Store,
  ConcatRelated("Warehouse","tbl","Chain=""" & [Chain] & """ and Store=""" & [Store] & """") AS Warehouses
FROM tbl;

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