Find the "date became customers" of the customers whose ID is between 10 and 20.
SELECT date_became_customer FROM customers WHERE customer_id BETWEEN 10 AND 20
SELECT date_became_customer FROM customers WHERE customer_id BETWEEN 10 AND 20
[{'date_became_customer': '2018-03-22 18:09:09'}, {'date_became_customer': '2018-03-04 00:17:48'}, {'date_became_customer': '2018-02-24 10:24:23'}, {'date_became_customer': '2018-03-05 07:19:45'}, {'date_became_customer': '2018-03-08 01:17:31'}, {'date_became_customer': '2018-03-15 02:54:27'}]