SQL Query question

I need sql queries  for the questions below: I included the queries that I am using but gives me one saleperson only. I know that "two orders do not have items."    

Th tables are in the attached file.

If I need to use full outer join query then how can I implement that ?   Thank you

Which sales people have NOT sold anything?    Subquery version

SELECT s.Ename
FROM SALESPERSONS s
WHERE s.EmpID NOT IN(
SELECT o.EmpID
FROM ORDERS o
   , SALESPERSONS s
WHERE o.EmpID = s.EmpID);
GO

Which sales people have NOT sold anything? JOIN version (explicit/named JOIN)

SELECT s.Ename
FROM SALESPERSONS s
FULL OUTER  JOIN  ORDERS o ON o.EmpID = s.EmpID
WHERE o.EmpID IS NULL;
sqltables.doc
ocdcAsked:
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Patrick MatthewsConnect With a Mentor Commented:
Another:

SELECT s.Ename 
FROM SALESPERSONS s LEFT JOIN
    ORDER o WHERE o.EmpID = s.EmpID
WHERE o.EmpID IS NULL

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Patrick MatthewsConnect With a Mentor Commented:
SELECT s.Ename 
FROM SALESPERSONS s
WHERE NOT EXISTS(
    SELECT 1
    FROM ORDER o WHERE o.EmpID = s.EmpID)

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ocdcAuthor Commented:
Which Customer  placed the most orders?
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ocdcAuthor Commented:
more info.  for    Which Customer  placed the most orders?  I need to show:

CUSTOMERS.custid, CUSTOMERS.cname, and a count
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ocdcAuthor Commented:
I've requested that this question be deleted for the following reason:

no need
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Patrick MatthewsCommented:
I object to deleting this question.  I offered two different ways to resolve the original question before the Asker (1) completely changed the question and then (2) decided that s/he no longer wanted to proceed.
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