如何在德比中将时差转换为小时（小数点后2位）？

Question

我在derby db中使用timestampdiff来检索2次之间的时间差：startdate和enddate。例如

startdate = 2010-02-23 02:59:52.045 enddate = 2010-02-23 03:45:39.898

select {fn timestampdiff(SQL_TSI_HOUR, startdate, enddate)} as diff 

我想知道如何在几小时内得到时间差异，例如0.25等？

谢谢。

Answer 1

select {fn timestampdiff(SQL_TSI_MINUTE, startdate, enddate)}/60 as diff 

我会调用变量startdatetime和enddatetime。

Answer 2

专门为HOURS差异使用“SQL_TSI_HOUR”

select {fn timestampdiff(SQL_TSI_HOUR, startdate, enddate)} as diff 

看到这里：https://docs.faircom.com/doc/sqlref/33476.htm