SQL Group by issues

Question

Hi All
I am new to SQL .
There are two tables EMP and DEPT . The common column betwee these two is DEPT_NO
Al I am trying to do is display the department name , number of employees and the department's average salary of the employees.
Below id my query . I am not able to complete the query due to the issues that group by clause poses .
Could some one please help ?
SELECT DEPT.DEPT_NAME , SUM(EMP.EMP_NO) , AVG(EMP.SAL)
FROM EMP , DEPT
WHERE EMP.DEPT_NO = DEPT.DEPT_NO
GROUP BY DEPT.DEPT_NAME
Thanks
Guna

Answer 1

user9967723 wrote:
I want to display the employee name, department number, and all the employees that work in the same department .This seems very different from your original request.
Also please let me know where i can find a 'attachment link in this page' to attach the table snap shot. You cannot attach anything in this forum. Creating a text version would be the most helpful as some external sites that host images are blocked for some of the users here.
It is always helpful to provide the following:
1. Oracle version (SELECT * FROM V$VERSION)
2. Sample data in the form of CREATE / INSERT statements.
3. Expected output
4. Explanation of expected output (A.K.A. "business logic")
5. Use \ tags for #2 and #3. See FAQ (Link on top right side) for details.
Also see the third post in this thread:
{thread:id=2174552}