Обсуждение: multi column aggregates?

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multi column aggregates?

От
"Creager, Robert S"
Дата:
Wondering if it's possible to create multi column (but a constant number of
columns per function) aggregate functions?  I'm looking to create a weighted
mean, which uses the sums and products... of 2 columns.  I have the SQL
statements to do what I want, but a two column aggregate in this case would
seem to work well.

Robert Creager
Senior Software Engineer
Client Server Library
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