结果天数

Question

我的表格中有一个DATETIME列，我想知道DATETIME值与现在之间的天数。

查询必须是这样的：

SELECT *, DATESUBWHATEVER(datetimefield) AS days FROM table

Answer 1

SELECT TIMESTAMPDIFF(DAY, datetimefield, NOW()) AS days from table;

Answer 2

您可以使用DATEDIFF（）函数

SELECT *, DATEDIFF(DateTimeField,NOW()) FROM TABLE

DATEDIFF参数说明：

DATEDIFF(date1,date2)