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AdventureWorks Database: Calculate the total freight paid by each customer

SQL Query - AdventureWorks: Exercise-7 with Solution

7. From the following table write a query in SQL to calculate the total freight paid by each customer. Return customerid and total freight. Sort the output in ascending order on customerid.

Sample table: sales.salesorderheader


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Sample Solution:

SELECT customerid,sum(freight) as total_freight 
FROM sales.salesorderheader
group by customerid
ORDER BY customerid ASC;

Sample Output:

customerid|total_freight|
----------+-------------+
     11000|     206.2249|
     11001|     159.5971|
     11002|     202.8511|
     11003|     203.4823|
     11004|     204.9003|
     11005|     203.0334|
     11006|     202.9759|
     11007|     205.2751|
     11008|     202.6578|
     11009|     202.2833|
     11010|     202.2011|
     11011|     203.3261|
     11012|       2.0315|
     11013|       2.8490|
     11014|       3.4613|
     11015|      62.5243|
	 ...

SQL AdventureWorks Editor:

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SQL: Tips of the Day

T-SQL Cast versus Convert?

CONVERT is SQL Server specific, CAST is ANSI.

CONVERT is more flexible in that you can format dates etc. Other than that, they are pretty much the same. If you don't care about the extended features, use CAST.

Ref : https://bit.ly/3VKT5M8