从1小时前选择SQL查询？

Question

我有这个查询,但我想根据服务器时间更改日期以删除超过1小时前的所有内容(或者如果服务器时间不可能按发布日期删除).我怎么做？

DELETE FROM wp_posts
 WHERE post_date < '2008-06-06 19:18:00' 
   AND post_status = 'publish'

Answer 1

使用:

DELETE FROM wp_posts
 WHERE post_date < DATE_SUB(NOW(), INTERVAL 1 HOUR)
   AND post_status = 'publish'

参考:

• DATE_ADD
• DATE_SUB

Answer 2

甚至更简单:

SELECT NOW() - INTERVAL 1 HOUR;

所以查询变成:

DELETE FROM wp_posts
 WHERE post_date < NOW() - INTERVAL 1 HOUR
   AND post_status = 'publish'