Question

我在访问中有以下表格：

ID Week
1   Wk1
1   Wk2
3   Wk2
3   Wk3

我构建了一个查询，将表分布在几周内。 crosstable看起来像这样：

ID  Wk1  Wk2  Wk3
1   1     1    0
3   0     1    1

我想创建一个列来获取最后两列之间的差异。像这样：

ID  Wk1  Wk2  Wk3  Diff
1   1     1    0   -1
3   0     1    1    0

此列应该是可变的。也就是说，随着我获得更多周数据（例如Wk4，Wk5等），变量列应该反映过去两周之间的差异。这样做的最佳方式是什么？

谢谢！

Answer 1

如果您为VBA解决方案打开，那么下面是我如何将解决方法转换为您想要的输出。在基本操作中，它在具有列和查询的表上操作以执行所需的计算字段。

这个概念是每次运行一个函数或子函数时构建一个查询sql - 它取决于你。

所以它首先建立一个获取每个字段的查询，而不是最后它添加CALC fiels，它们是表的最后和倒数第二个字段的减去值。

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两列之间的差异，列的选择在添加更多数据时会有所不同

1 个答案: