查询一天:

    select from table where to_days(column_time) = to_days(now()); select from table where date(column_time) = curdate();

    查询一周:

    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 1 MONTH) <= date(column_time);

    查询一年:

    select * from table where DATE_SUB(CURDATE(), INTERVAL 1 YEAR) <= date(column_time);