O'Reilly logo

V14 Certification: Teradata SQL by Tom Coffing, Leona Coffing

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 4 - Aggregation

“Teradata climbed 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

image

SELECT ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required