MySQL-选择已上传2个月以上的数据

Question

I have a table where I upload the users galleries. I need the users with the gallery.created_at has been uploaded for 2 or more months. I have tried this but it is giving me 0 results

    select `galleries`.`client_id` as `client_id`, 
        `users`.`first_name` as `first_name` from `galleries` 
        inner join `users` on `users`.`id` = `galleries`.`client_id` 
        where `galleries`.`session_id` is null and 
       `galleries`.`is_video` = '1' and `galleries`.`is_thumb` = '1' and
        galleries.created_at >= galleries.created_at - INTERVAL 2 MONTH 
   `galleries`.`client_id` not in (select `client_id` from 
        `orders`)

Answer 1

Problem is here:

galleries.created_at >= galleries.created_at - INTERVAL 2 MONTH

and a missing AND .

Perhaps curdate is what you need:

select g.client_id as client_id,
    u.first_name as first_name
from galleries g
inner join users u on u.id = g.client_id
where g.session_id is null
    and g.is_video = '1'
    and g.is_thumb = '1'
    and g.created_at <= curdate() - INTERVAL 2 MONTH
    and g.client_id not in (
        select client_id
        from orders
        )

I used <= because your requirements states uploaded for 2 or more months .