Question

I am trying to write this select statement.

My select statement consists of a join that returns all of the first and last names of my fictional employees, their department names and I am trying to group the individuals by their respective departments. This is the code I wrote:

select e.First_Name,e.Last_Name,Department_Name
from EMPLOYEES e
join DEPARTMENTS
on e.Department_Id = DEPARTMENTS.Department_Id
group by Department_Name

This is the error message I received:

Msg 8120, Level 16, State 1, Line 1
Column ‘EMPLOYEES.First_Name’ is
invalid in the select list because it
is not contained in either an
aggregate function or the GROUP BY
clause.

What is the best to straighten out this error?

Thank you for your help

Answer 1

try this

select e.First_Name,e.Last_Name,d.Department_Name
from EMPLOYEES e
join DEPARTMENTS d
on e.Department_Id = d.Department_Id
group by e.First_Name,e.Last_Name,d.Department_Name