有没有其他方法可以从日期中提取年份？

Question

This code works on Google's Cloud SQL. I was wondering what the equivalent is or another way to query it on Microsoft SQL Server 2019. When I use this same code I get the error "'Extract' is not a recognized built-in function name.

SELECT DATEPART(year, [starttime]) as trip_year,    
       COUNT(*) as trip_count
FROM [dbo].[BikeTripData]
WHERE [starttime] BETWEEN '2014-01-01T00:00:00'
   AND '2015-12-31T23:59:59'
   AND [bikeid] is not null
GROUP BY 1

UPDATE: I've tried this code with DATEPART however I still get the error message "Each GROUP BY expression must contain at least one column that is not an outer reference."

Without the GROUP BY function I get "Column 'dbo.BikeTripData.starttime' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause."

For preference I'm trying to create 2 columns of trip_year and trip_count where it would show the year followed by the trip count.

Answer 1

In Sql-Server you can use YEAR :

   select year(starttime)