SQL - How To Order Using Count From Another Table

Question

1. Bloggers

blogger_id
1 
2
3

2. Posts

post_from_blogger_id
1 
1
1
2
2
3

As

Answer 1

try LEFT JOIN for this question

SELECT DISTINCT(Bloggers.blogger_id),
(select  count(post_from_blogger_id) from Posts 
where Posts.post_from_blogger_id=Bloggers.blogger_id) post_from_blogger_id FROM Bloggers 
LEFT OUTER JOIN Posts ON Bloggers.blogger_id=Posts.post_from_blogger_id 
ORDER BY post_from_blogger_id DESC