AdventureWorks Database: Sales by year using GROUP BY with an expression

SQL Query - AdventureWorks: Exercise-17 with Solution

17. From the following table write a query in SQL to retrieve the total sales for each year. Return the year part of order date and total due amount. Sort the result in ascending order on year part of order date.

Sample table: Sales.SalesOrderHeader

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Sample Solution:

SELECT DATE_PART('year',OrderDate) AS "Year"  
    ,SUM(TotalDue) AS "Order Amount"  
FROM Sales.SalesOrderHeader  
GROUP BY DATE_PART('year',OrderDate)  
ORDER BY DATE_PART('year',OrderDate);

Sample Output:

Year  |Order Amount |
------+-------------+
2011.0|14155699.5250|
2012.0|37675700.3120|
2013.0|48965887.9632|
2014.0|22419498.3157|

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