SQL error when using Group By: Each GROUP BY expression must contain at least one column that is not an outer reference

Question

I\'ve been getting this error when doing what I thought to be one of the simplest possible queries! I see other people have run into issues here too, and I\'ve looked throug

Answer 1

You have quotes around the Name field which are unneeded.

SELECT Count(id), Name
FROM grouptest
GROUP BY Name

Based on your comments, you need to CAST your Name column:

SELECT Count(id), Cast(Name as Varchar(max)) Name
FROM grouptest
GROUP BY Cast(Name as Varchar(max))