1
使用定期日期选择mysql的结果我似乎在这里有一些简单的问题。从时间戳列
我有一些数据与时间戳。我有一对日期的,我想这些日期间获得的数据,即:
我已经试过:
SELECT
SUM(total_amount) as total_sales_amount
FROM
purchases
WHERE
timestamp <= "2011-11-13"
AND
timestamp >= "2011-11-06"
和:
SELECT
SUM(total_amount) as total_sales_amount
FROM
purchases
WHERE
date(timestamp) <= "date(2011-11-13)"
AND
date(timestamp) >= "date(2011-11-06)"
这是行不通的。
它不会抛出错误,它只是不会在这些日期之间返回结果。
我误解了什么?
http://stackoverflow.com/questions/1080207/mysql-select-all-data-between-two-dates –