Question

After a long work on it i am here going to ask my question, its simple but i don’t know why it is not working, please help!!!

I have a table

phpfox_friend (where i have the below columns)

• friend_id
• user_id
• friend_user_id
• ordering

phpfox_user (where i have below columns)

• usre_id
• user_name
• status_id
• full_name

I am trying to inner join it by using below mentioned Sql query, but it give me an error

#1054 – Unknown column ‘phpfox_friend.user_id’ in ‘on clause’

Query

SELECT * 
FROM `phpfox_friend` 
INNER JOIN `phpfox_user` 
  ON `phpfox_friend.user_id`=`phpfox_user.user_id` 
WHERE phpfox_user.user_name IS NOT NULL

Kindly guide me what i am doing wrong in it

Answer 1

try this:

SELECT * FROM `phpfox_friend` 
INNER JOIN `phpfox_user` ON 
`phpfox_friend`.`user_id`=`phpfox_user`.`user_id` 
WHERE `phpfox_user`.`user_name` IS NOT NULL

you need to add the quotes to tables and to the fields.

so use

`phpfox_friend`.`user_id` instead of `phpfox_friend.user_id`