转换 Access 表中的范围数据
我在 Access 数据库中有一个表，如下所示；
Name | Range | X | Y | Z
------------------------------
A | 100-200 | 1 | 2 | 3
A | 200-300 | 4 | 5 | 6
B | 100-200 | 10 | 11 | 12
B | 200-300 | 13 | 14 | 15
C | 200-300 | 16 | 17 | 18
C | 300-400 | 19 | 20 | 21
我尝试编写一个查询，将其转换为以下格式。
Name | X_100_200 | Y_100_200 | Z_100_200 | X_200_300 | Y_200_300 | Z_200_300 | X_300_400 | Y_300_400 | Z_300_400
A | 1 | 2 | 3 | 4 | 5 | 6 | | |
B | 10 | 11 | 12 | 13 | 14 | 15 | | |
C | | | | 16 | 17 | 18 | 19 | 20 | 21
经过一段时间的尝试后，我能想到的最好方法是编写一堆简短的查询，为每个范围选择数据，然后使用联合查询将它们再次组合在一起。问题是，在这个例子中，我显示了 3 列（X、Y 和 Z），但实际上我有更多列。由于我提出的 SQL 数量过多，Access 开始变得紧张。
有更好的方法来实现这一目标吗？
I have a table in Access database as below;
Name | Range | X | Y | Z
------------------------------
A | 100-200 | 1 | 2 | 3
A | 200-300 | 4 | 5 | 6
B | 100-200 | 10 | 11 | 12
B | 200-300 | 13 | 14 | 15
C | 200-300 | 16 | 17 | 18
C | 300-400 | 19 | 20 | 21
I have trying write a query that convert this into the following format.
Name | X_100_200 | Y_100_200 | Z_100_200 | X_200_300 | Y_200_300 | Z_200_300 | X_300_400 | Y_300_400 | Z_300_400
A | 1 | 2 | 3 | 4 | 5 | 6 | | |
B | 10 | 11 | 12 | 13 | 14 | 15 | | |
C | | | | 16 | 17 | 18 | 19 | 20 | 21
After trying for a while the best method I could come-up with is to write bunch of short queries that selects the data for each Range and then put them together again using a Union query. The problem is that for this example I have shown 3 columns (X, Y and Z), but I actually have much more. Access is starting to strain with the amount of SQL I have come up with.
Is there a better way to achieve this?
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答案很简单。只需使用 Access Pivotview。但发现很难将结果导出到 Excel。
The answer was simple. Just use Access Pivotview. Finding it hard to export the results to Excel though.