mysql datetime field with index get a range 'like' vs. 'between and' performance

Question

I just find mysql can query datetime using like:

like \'2013-06-12%\'

I think it can not use the index. I Google it, but can not find such subj

Answer 1

One alternative for such cases is to do something like this:

SELECT *
FROM subscription t
WHERE t.active_time BETWEEN '2013-06-30 00:00:00' AND '2013-06-30 23:59:59';

In the end you get all events from that day.