Question

我需要将以下sql server查询转换为mysql

SELECT DATEADD(dd, 0, DATEDIFF(dd, 0, p_date)) [date],
       SUM(p_amount) [sum]
FROM tbl_Payments
WHERE DATEADD(dd, 0, DATEDIFF(dd, 0, p_date)) BETWEEN '20130701' AND '20130731'
GROUP BY DATEADD(dd, 0, DATEDIFF(dd, 0, p_date))

列名：p_date，p_amount

Answer 1

您的查询看起来正确，除了

之类的内容

用反引号替换[]＆＃34;`＆＃34;逃避
DATE和TIME函数语法在MySQL中与SQL Server不同。有关MySQL DATE和TIME函数的更多信息，请参阅Date and Time Functions
尝试使用1-1-1之类的最短日期，而不是0

select DATEDIFF('1-1-1', now())

select DATE_ADD('1-1-1', interval DATEDIFF(now(), '1-1-1') day);

有了这一切，下面的查询在MySQL中应该可以正常工作

SELECT DATE_ADD('1-1-1', interval DATEDIFF(p_date, '1-1-1') day) `date`,
         SUM(p_amount) `sum`
         FROM tbl_Payments
         WHERE DATE_ADD('1-1-1', interval DATEDIFF(p_date, '1-1-1') day)
         BETWEEN '20130701' AND '20130731'
        GROUP BY DATE_ADD('1-1-1', interval DATEDIFF(p_date, '1-1-1') day)

需要将sql server查询转换为mysql查询

1 个答案: