按天计算分组记录

Question

我在使用SQL在Access中创建查询时遇到一些小麻烦。任何帮助将不胜感激。

我正在尝试创建一个看起来像这样的查询

数据库看起来像这样（我不得不用通用名称重新创建它） LOG

dispatcher  tech    zone   serviceorder  casesummary      resolution         date_
John Doe    Trump    MZ     13458215    MZ/ description   Replaced Printer   8/1/2015
John Doe    Clinton  Core   45821654    Core/ description Added Paper        8/1/2015
John Doe    Smith    WA     12458254    WA/ description   WOA                8/1/2015
John Doe    Smith    WA     15465224    WA/ description   Replaced Printer   8/2/2015
John Doe    Williams WB     15468521    WB/ description   Replaced Scangun   8/2/2015
John Doe    Jones    WFF    48593258    WFF/ description  Replaced Scangun   8/3/2015
John Doe    Jones    WFF    15487528    WFF/ description  Replaced printer   8/4/2015
Bob Dole    Jones    WA     65328451    WA/ description   WOA                8/4/2015
Bob Dole    Williams WB     48521596    WB/ description   WOA                8/5/2015
Bob Dole    Trump    WC     34852369    WC/ description   WOA                8/5/2015
Bob Dole    Trump    WC     63214789    WC/ description   Replaced Printer   8/5/2015
Bob Dole    Williams WB     52369852    WB/ description   Added Paper        8/6/2015
Bob Dole    Johnson  WE     25896325    WE/ description   WOA                8/6/2015
Jack Hill   Jones    WC     78521478    WC/ description   Replaced Printer   8/6/2015
Jack Hill   Jones    WC     52585258    WC/ description   Replaced Scangun   8/7/2015
Jack Hill   Johnson  WD     12457898    WD/ description   Replaced Scangun   8/8/2015
Jack Hill   Clinton  Core   45698523    Core/ description Replaced printer   8/8/2015
Jack Hill   Smith   WA      32589654    WA/ description   WOA                8/8/2015

我目前的代码就是这个

SELECT DISTINCT Format(Log.Date_,"ddd") AS [Day], LOG.Date_,
                (select COUNT(*) FROM LOG
                 Where Zone_of_call = "WFF") AS WA
FROM LOG
WHERE (((LOG.Date_) >= [Start Date] And (LOG.Date_) <= [End Date]))
ORDER BY LOG.Date_;

数据库是LOG。我跳过了技术和调度，然后按区域跳到了每个案例的每日计数列。