Mysql 查询计数行的总和(过去30天)
我有这个表Mysql 查询计数行的总和(过去30天),mysql,sql,Mysql,Sql,我有这个表p\u payments。该表包含列payment\u amount、payment\u status和createdtime: p_payments ____________________________ payment_status varchar(25) payment_amount decimal(7,2) createdtime datetime 我如何创建一个查询来计算过去30天的收入总和,其中付款状态=已完成 我的桌子 paymen
p\u payments
。该表包含列payment\u amount
、payment\u status
和createdtime
:
p_payments
____________________________
payment_status varchar(25)
payment_amount decimal(7,2)
createdtime datetime
我如何创建一个查询来计算过去30天的收入总和,其中付款状态=已完成
我的桌子
payments_status payment_amount createdtime
----------------------------------------------------------
Completed 1.00 2013-09-29 21:45:02
Denied 2.00
Failed 1.50
... etc
选择SUM(p.'payment\u amount')作为'total\u payments'`
从'payments`p
其中DATEDIFF(NOW(),p.createdtime)选择SUM(p.'payment\u amount')作为'total\u payments'`
从'payments`p
其中DATEDIFF(NOW(),p.createdtime)计数日期是从实际日期开始的?计数日期是从实际日期开始的?使用date\u SUB
function:)比使用-30更优雅(使用date\u SUB
function:)比使用-30更优雅
SELECT Sum(payment_amount)
FROM p_payments
WHERE payments_status = 'completed'
AND createdtime >= Date_Sub(Curdate(), INTERVAL 30 day)
SELECT SUM( p.`payment_amount` ) AS `total_payments`
FROM `payments` p
WHERE DATEDIFF(NOW(), p.createdtime) <= 30
AND p.payment_status = 'Completed'