The mysql declaration does not return the correct result

I have a mysql row with 'date = 2013-05-02, type = 1' etc.

Then I run this query

SELECT date, type, status, rate
FROM reservation
WHERE  type = 1
AND date BETWEEN 2013-05-01 AND 2013-05-08
ORDER BY date asc
LIMIT 0, 10

But this returns empty results. What is the query issue here?

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Put the dates in quotes ' in the mysql query.

SELECT date, type, status, rate
FROM reservation
WHERE  type = 1
AND date BETWEEN '2013-05-01' AND '2013-05-08'
ORDER BY date ASC
LIMIT 0, 10 ;