SQL SUM和COUNT多个列

Question

我有这样的MS Access数据：

+------------+-----------+ 
| DateStart | PATIssued | 
+------------+-----------+ 
| 12/12/2004 | Yes  | 
+------------+-----------+ 
| 13/12/2004 | No  | 
+------------+-----------+ 
| 14/12/2004 | No  | 
+------------+-----------+ 
| 12/12/2004 | No  | 
+------------+-----------+ 
| 12/12/2004 | Yes  | 
+------------+-----------+ 
| 14/12/2004 | No  | 
+------------+-----------+ 
| 13/12/2004 | Yes  | 

我想星期几来算，每天记录，在过去的一周号码，并在另一列数记录，其中PATIssued =是

那么结果会是什么样子：

Date  DayCount PATCount 
Monday  3  2 
Tuesday  2  1 
Wednesday  2  0 

我已经尽可能

得到

的问题是，这将返回

Date  PATIssuedYN DayCount PATCount 
Monday  No   1   
Monday  Yes   2  2 
Tuesday  No   1 
Tuesday  Yes   1  1 
Wednesday  No   2   
Wednesday  Yes   0  0 

，其中星期一为12/12，周二周三13/12 14/12是

Answer 1

，因为你不希望返回列PatIssuedYN，将其删除从你的选择和你的小组是：

SELECT Format(DateValue(DateStart),"dddd") AS DayOFWeek, 
Count(Table1.DateStart) AS DayCount, 
Sum(IIf([PATIssuedYN]="Yes",1,)) 
FROM Table1 
WHERE (((Table1.DateStart) Between DateAdd("d",-7,Now()) And Now())) 
GROUP BY DateValue(DateStart);