Why there is always 'SUM' aggregate function in examples of 'PIVOT' in SQL server

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SQL-Server-2008

1.What is the matter of using aggregate function in pivot?
2.Can anybody explain how the 'PIVOT' works in SQL server ?
I tried even on Google, but couldn't understand how to use it.
As I am new here, hope you understand.
Experts out there, Please.
Thank you,

DeeBee

Posted 29-Nov-12 20:06pm

Dee_Bee

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Mehdi Gholam · Answer 1 · 2012-11-29T20:11:00

Solution 1

SUM is the most used aggregate function, you can also use AVG,MAX,MIN,COUNT.

http://social.msdn.microsoft.com/Forums/en/transactsql/thread/4d6d0acd-fdb9-4961-be34-bc6fa1869ce3[^]

Posted 29-Nov-12 20:11pm

Mehdi Gholam

Comments

Dee_Bee 30-Nov-12 2:14am

Thank a bunch for that, but why to use an aggregate function there? why not just a column name ? as it makes no difference using an aggregate function?

Please help.

Thank you

Mehdi Gholam 30-Nov-12 2:26am

You have to specify what you want done on the data sum,count etc. so you have to write "sum" on the column name.