问题描述
我有一个SQL查询给我X个结果，我希望查询输出有一个称为算是让查询变得像这样:
I Have an SQL query giving me X results, I want the query output to have a coulmn calledcount making the query somthing like this:
count id section
1 15 7
2 3 2
3 54 1
4 7 4
我该如何做到这一点?
How can I make this happen?
推荐答案
好的，我想这已经足够构成答案了:以下链接指定了两种方法: http://www.techrepublic.com/blog/microsoft-office/an-access -query-returning-nth-record/
Alright, I guess this comes close enough to constitute an answer: the following link specifies two approaches: http://www.techrepublic.com/blog/microsoft-office/an-access-query-that-returns-every-nth-record/
第一种方法假定您具有ID值并使用DCount(类似于@mikeY的解决方案).
The first approach assumes that you have an ID value and uses DCount (similar to @mikeY's solution).
第二种方法假设您可以创建一个VBA函数，该函数将对记录集中的EACH记录运行一次，并且每次需要运行计数时都需要手动重置(使用某些VBA)-因为它使用一个静态"值来运行其计数器.
The second approach assumes you're OK creating a VBA function that will run once for EACH record in the recordset, and will need to be manually reset (with some VBA) every time you want to run the count - because it uses a "static" value to run its counter.
只要您拥有合理的数字(数百个，而不是数千个)或记录，第二种方法对我来说似乎是最简单/最有效的.
As long as you have reasonable numbers (hundreds, not thousands) or records, the second approach looks like the easiest/most powerful to me.
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