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Why the difference comes in excel and sql server while using avg function,

Posted on 2013-06-11
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Last Modified: 2013-06-11
The sample data is attached.
When i find the average using excel for set of observations the output varies in excel and sql server.Difference--in-Output.xlsx
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Question by:searchsanjaysharma
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5 Comments
 
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Expert Comment

by:PortletPaul
ID: 39236946
it's (the result) is being treated as an integer in your query, but that's not true in Excel.
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LVL 49

Expert Comment

by:PortletPaul
ID: 39236947
see the difference this way perhaps:

select avg(data), avg(data*1.0) from table1

http://sqlfiddle.com/#!3/2efbb/2
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LVL 13

Expert Comment

by:sameer2010
ID: 39236993
SELECT AVG(CAST(DataIn as REAL)) AS  FROM AVGTABLE
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Accepted Solution

by:
PortletPaul earned 1500 total points
ID: 39237021
yes, or any cast/convert that will provide higher precision, many to choose from...

select
  avg(data)
, avg(data*1.0)
, avg(cast(data as real))
, avg(cast(data as float))
, avg(cast(data as money))
, avg(cast(data as decimal(18,5)))
from table1
59  59.829545 59.829545454545 59.829545454545 59.8295  59.829545

Open in new window

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LVL 49

Expert Comment

by:PortletPaul
ID: 39237311
thanks & cheers, Paul
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