SQL Group by Year

Question

This is my query.

select CONVERT(varchar, cast(date as datetime), 3)
from shoptransfer 
group by year (date)

I want to group by the year pa

Answer 1

I don't know about T-SQL, but in SQL in general, what is in the group by clause must exactly match each non-aggregate function column in the select clause. Try

select CONVERT(varchar,cast(date as datetime),3)
from shoptransfer 
where 
SUBSTRING(productcode, 5, 3) like '%'  group by CONVERT(varchar,cast(date as datetime),3)

also, where SUBSTRING(productcode, 5, 3) like '%' is not filtering out much - maybe remove it.