How do I match an entire day to a datetime field?

Question

I have a table for matches. The table has a column named matchdate, which is a datetime field.

If I have 3 matches on 2011-12-01:

Answer 1

Just use the SQL BETWEEN function like so:

SELECT * FROM table WHERE date BETWEEN '2011-12-01' AND '2011-12-02'

You may need to include times in the date literals, but this should include the lover limit and exclude the upper.

From rails I believe you can do:

.where(:between => '2011-12-01'..'2011-12-02')