Question

I have two tables that link together through an id one is “submit_moderate” and one is “submit_post”

The “submit_moderate” table looks like this

id     moderated_by     post
1      James            60
2      Alice            32
3      Tim              18
4      Michael          60

Im using a simple query to get data from the “submit_post” table according to the “submit_moderate” table.

$get_posts = mysql_query("SELECT * FROM submit_moderate WHERE moderated_by!='$user'");

$user is the person who is signed in.

Now my problem is when I run this query, with the user ‘Michael’ it will retrieve this

1   James   60
2   Alice   32
3   Tim     18

Now technically this is correct however I don’t want to retrieve the first row because 60 is associated with Michael as well as James. Basically I don’t want to retrieve that value ’60’.

I know why this is happening however I can’t figure out how to do this. I appreciate any hints or advice I can get.

Answer 1

SELECT DISTINCT post
  FROM submit_moderate
 WHERE post NOT IN (SELECT post
                      FROM submit_moderate
                     WHERE moderated_by = 'Michael')

PS: not sure, but in some cases it probably would worth changing select-part of the nested query to SELECT DISTINCT post