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Databases

Abe Layee
Abe Layee
8,378 Points
Posted by Abe Layee
Abe Layee
8,378 Points

I am trying to get the average in descending order from three column.

My goal here is to get the average of each state in descending order. I don't what I am doing wrong... this is the link of the image https://gyazo.com/cd62d7fce273deaa987471b6b936c129

SELECT state,
AVG(perDem),
AVG(perGOP),
AVG(perInd)
FROM polls
GROUP BY state
ORDER BY perDem DESC // this returns the perDem in desc


SELECT state,
AVG(perDem),
AVG(perGOP),
AVG(perInd)
FROM polls
GROUP BY state
ORDER BY perDem, perGop, perInd DESC // does not work

2 Answers

Steven Parker
Steven Parker
231,128 Points
Steven Parker
Steven Parker
231,128 Points

You're displaying the averages, but ordering by the original column.

Also, you need to specify the ordering for each column.

ORDER BY perDem, perGop, perInd DESC  -- does not work
--
ORDER BY AVG(perDem) DESC, AVG(perGOP) DESC, AVG(perInd) DESC  -- but THIS should!

Another approach would be to use column aliases:

SELECT state,
       AVG(perDem) AS perDem,
       AVG(perGOP) AS perGop,
       AVG(perInd) AS perInd
FROM polls
GROUP BY state
ORDER BY perDem DESC, perGop DESC, perInd DESC  -- NOW it should work
Abe Layee
Abe Layee
8,378 Points
Abe Layee
Abe Layee
8,378 Points

Thank you for your help