Re: need some help on figuring out how to write a query

On 2008-02-21 13:37, Justin wrote:
> ...  I'm wondering if there is a way to create this in a single select
> statement??
> I can't think of a way to do it???
Break down your problem using VIEWs.  Create a VIEW that gets just ONE
of the averages, based on a starting date.  Then create a SELECT that
gets data from the VIEW as though it was an actual table.

Once you get it working, you can replace the reference to the VIEWs in
the SELECT statement, with the definition of the VIEWs, but I would not
do that unless the result is relatively simple and easy to understand.
Maintainability should be your goal.

-- Dean

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