Jump to content

Recommended Posts

I have a DB for videos.

I want to see what group has the most video contributors.

Here are my three tables:

1- Group and groupID

2 - Photographer, photographerID, name, and groupid.

 

I think I can use NATURAL JOIN since groupID is in both table.

I am using SUM to count but whatever statement i run returns empty or Null.

 

 

 

 

 

 

Link to comment
https://forums.phpfreaks.com/topic/211620-new-to-using-joins-having-issue/
Share on other sites

I'm assuming that Group and Photographer are fields in your table, and not the table names. You'll have something similar to this:

SELECT g.Group, COUNT(p.photographerID) AS group_count FROM photo_table p
INNER JOIN group_table g ON p.groupid = g.groupID
GROUP BY g.groupID
ORDER BY group_count DESC
LIMIT 1

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.