Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
630 views
in Technique[技术] by (71.8m points)

sql - How to count number of records per day?

I have a table in a with the following structure:

CustID --- DateAdded ---

 396       2012-02-09 
 396       2012-02-09 
 396       2012-02-08 
 396       2012-02-07 
 396       2012-02-07
 396       2012-02-07 
 396       2012-02-06
 396       2012-02-06

I would like to know how I can count the number of records per day, for the last 7 days in SQL and then return this as an integer.

At present I have the following SQL query written:

SELECT * 
  FROM Responses
 WHERE DateAdded >= dateadd(day, datediff(day, 0, GetDate()) - 7, 0)

RETURN

However this only returns all entries for the past 7 days. How can I count the records per day for the last 7 days?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
select DateAdded, count(CustID)
from Responses
WHERE DateAdded >=dateadd(day,datediff(day,0,GetDate())- 7,0)
GROUP BY DateAdded

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

1.4m articles

1.4m replys

5 comments

57.0k users

...