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Netezza SQL by Mike Larkins, Tom Coffing

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Chapter 5 – Aggregation Function

"Netezza climbed the Aggregate Mountain and delivered a better way to Sum It."

Tera-Tom Coffing

Quiz – You calculate the Answer Set in your own Mind

Aggregation_Table

Employee_No

    Salary    

423400

100000.00

423401

100000.00

423402

NULL

SELECT  AVG(Salary) as "AVG"

                ,Count(Salary) as SalCnt

                ,Count(*)         as RowCnt

FROM   Aggregation_Table ;

image

What would the result set be from the above query? The next slide shows answers!

Answer – You calculate the Answer Set in your own Mind

Aggregation_Table

Employee_No

    Salary    

423400

100000.00

423401

100000.00

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