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jjok
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Quote jjok Replybullet Topic: selection formula
    Posted: 21 Sep 2011 at 5:56am
OK, probably a really easy solution to this one. I have a database which contains all employees and the many training classes they have completed. Each employee has completed several classes. I would like to select those employees who have NOT completed a specific training class. Any suggestions for what selection formula to use? If I use the "not one of" or "<>" it doesn't give me the proper list.
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DBlank
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Quote DBlank Replybullet Posted: 21 Sep 2011 at 8:08am

in a command you can do a grouped selection of employee and outerjoin it to the a grouped selection of employee where specific training class was done. then select only records where they second table has no matching record in the first.

SELECT     table.employee
FROM         table LEFT OUTER JOIN
                          (SELECT     employee
                            FROM          table AS table_1
                            WHERE      (class = 'specific class name')
                            GROUP BY employee) AS D1 ON D1.Employee = table.employee
GROUP BY table.employee, D1.employee
HAVING      (D1.employee IS NULL)
 
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jjok
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Quote jjok Replybullet Posted: 21 Sep 2011 at 10:24am

ok, i will give that a spin. thanks.

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