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以下代碼在計數不同值時會給出語法錯誤。ms訪問計數不同列
SELECT SUM(house_thanas.target) AS target,
SUM(reports_db.ach_total) AS Total,
Count(DISTINCT reports_db.report_date) AS WorkingDays
FROM ((areas
INNER JOIN distribution_houses
ON areas.area_id = distribution_houses.area_id)
INNER JOIN house_thanas
ON distribution_houses.distribution_house_id =
house_thanas.distribution_house_id)
INNER JOIN reports_db
ON house_thanas.thana_id = reports_db.thanaid
WHERE reports_db.report_date BETWEEN
#2012/02/10 12:00:00 am# AND #2013/02/09 11:59:59 pm#
如何在Microsoft Access數據庫中查找不同的計數值?
可能重複[查詢計數不同值的數量?](http://stackoverflow.com/questions/13851607/query-to-count-number-of-different-values) – HansUp 2013-02-09 06:54:05
訪問SQL不支持'計數(Distinct ...)'。有關Access備選方案,請參閱此博客文章:http://blogs.office.com/b/microsoft-access/archive/2007/09/19/writing-a-count-distinct-query-in-access.aspx – HansUp 2013-02-09 06:55:30
每在哪裏使用小組可以使我的結果不同 – decoder 2013-02-09 07:20:19