Question

I have two tables in my database and I would like to join them.

The purpose is to display all comments (friends and my own) on each article. I have managed to select and display my friends comments but not to join and display my own as well.

Table structures

friends:

id
follower
following

users

id
name
email

Query for friends so far:

SELECT following FROM friends WHERE follower='$follower'

Query for user:

SELECT id FROM users WHERE id='$follower' 

Answer 1

Use JOIN clause to join both your tables:

SELECT * FROM friends AS f INNER JOIN users AS u ON f.follower = u.id;

Then you can choose necessary rows that meet specified criteria. For example using WHERE clauses:

SELECT * FROM friends AS f INNER JOIN users AS u ON f.follower = u.id WHERE following = 1;