Datediff SQL 日期转换

Question

I am trying to use datediff on a date/time column. The date/time column is in dd/mm/yyyy hh:mm:ss format and from what I have read online Datediff works with yyyy/mm/dd hh:mm:ss format.

I have tried to convert bit I am facing problems

DATEDIFF(minute, convert(varchar(c.duration, 20)), '1970/01/01 00:00:00') as "Resolution Target"

Any help would be appreciated

Answer 1

Depends on database you are using,if you are using Oracle 'yyyy-mm-dd',if it is SQL Server 'yyyy/mm/dd' can be used as datediff function.

DATEDIFF(minute, convert(varchar(c.duration), 20), '1970/01/01 00:00:00') as "Resolution Target"