如何使用datediff（）作为列？ [英] How to use datediff() for columns?

问题描述

我想知道如何区分两列之间的时间段，如时间和时间？

I wanna know how to differentiate a time period in a day between two columns like in time and out time?

推荐答案

请参阅 http://www.w3schools.com/sql/func_datediff.asp [ ^ ] [ datediff ^ ]



时间只需使用适当的缩写。开始和结束日期可以是列

Refer to http://www.w3schools.com/sql/func_datediff.asp[^][datediff^]

For time just use the appropriate abbreviation. Start and end date can be the columns

尝试：

Try:

SELECT DATEDIFF(hh, startDateColumn, endDateColumn) As [Span In Hours] FROM MyTable

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