Question

I have two tables in SQL Server. First is product and another is Productimage.

In ProductImage, there could me more than one image for a single product.

Now I want all products and only one image for each product. So please help me to write such query.

Answer 1

select p.prodid,max(i.image) from product p inner join Productimage i
on p.prodid=i.prodid
group by p.prodid 

or

select prodid,image from (
select p.prodid,i.image,row_number() over (order by p.prodid partition by p.prodid) as rn 
from product p inner join Productimage i
on p.prodid=i.prodid) a where a.rn=1