Solved

PHP Mysql Syntax For Count and Select

Posted on 2011-03-21
2
288 Views
Last Modified: 2012-06-21
Hello,

 I want to count and select multiple items in a table.

 I want to select members who opened more than 15 threads in the last 15 days.

 Threadid - userid - dateline are the column names.


How can i select and list these userids?
0
Comment
Question by:mescalin
  • 2
2 Comments
 
LVL 8

Expert Comment

by:Rik-Legger
ID: 35183819
This will do:

SELECT *, COUNT(*) as num_threads FROM `table` WHERE  DATE_SUB(CURDATE(),INTERVAL 15 DAY) <= dateline  GROUP BY `userid` HAVING num_threads > 15 ORDER BY aantal DESC

Open in new window


I'm not sure what kind of value you have in dateline but let me know if this doens't work so you can give me some more detail on that field.
0
 
LVL 8

Accepted Solution

by:
Rik-Legger earned 500 total points
ID: 35183822
Correction in query:

SELECT *, COUNT(*) as num_threads FROM `table` WHERE  DATE_SUB(CURDATE(),INTERVAL 15 DAY) <= dateline  GROUP BY `userid` HAVING num_threads > 15 ORDER BY num_threads DESC

Open in new window

0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
How do I setup Wordpress to use Master / Slave MySQL database setup? 4 51
Optimize the query 5 43
check mysql insert 12 26
Reference key in foreach loop 4 16
I imagine that there are some, like me, who require a way of getting currency exchange rates for implementation in web project from time to time, so I thought I would share a solution that I have developed for this purpose. It turns out that Yaho…
Introduction Since I wrote the original article about Handling Date and Time in PHP and MySQL (http://www.experts-exchange.com/articles/201/Handling-Date-and-Time-in-PHP-and-MySQL.html) several years ago, it seemed like now was a good time to updat…
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question