T-SQL转换每个日期的DateTime和Count条目

Question

I am lost on how to solve what I believe should be a simple query.

I want to count the number of entries for each date in a table. The column DateCreated is in DateTime format. I can convert the datetime to date using

convert(VARCHAR, JobApps.DateCreated, 2) as Date

but with COUNT(ID) as Qty I get a count of 1 with multiple "Date" rows.

Here is the SQL query I am using.

SELECT  
    convert(VARCHAR, DateCreated, 2) as Date, COUNT(CompanyName) as Qty
FROM Apps  
GROUP BY DateCreated
ORDER BY DateCreated DESC

This is the results I get.

Date       Qty
------------------
13.05.29   1
13.05.29   1
13.05.29   1
13.05.29   1
13.05.29   1
13.05.28   1
13.05.28   1
13.05.27   1
13.05.27   1

etc...

What I wanting is a result like this...

Date       Qty
-----------------
13.05.29   5
13.05.28   2
13.05.27   2

etc...

Answer 1

Just gotta change your GROUP BY to use the actual value you want:

SELECT convert(VARCHAR, DateCreated, 2) as Date, COUNT(1) as Qty
FROM Apps
GROUP BY convert(VARCHAR, DateCreated, 2)
ORDER BY Date DESC