本周内:
select * from wap_content where week(created_at) = week(now)


查询一天:
select * from table where to_days(column_time) = to_days(now());select * from table where date(column_time) = curdate();


查询7天:
select * from table  where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(column_time);


查询一个月:
select * from table  where DATE_SUB(CURDATE(), INTERVAL INTERVAL 1 MONTH) <= date(column_time);

 

转自:http://blog.163.com/very_apple/blog/static/2775923620133210232571/