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Software ==> | SQL (203 exercises) |
Topic ==> | Aggregation and grouping (12 exercises) |
Level ==> | Relatively easy |
Subject ==> | SQL training |
This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.
This will generate the database that you'll need to use in order to do this exercise (remember to refresh your list of databases to see it!). Note that any files provided are only to be used for exercises published on this website, and may not be reused or distributed in any form without the prior written permission of Wise Owl.
If you don't have a copy of the Music_01 database, follow the instructions at the following link to create it: www.wiseowl.co.uk/sql/exercises/standard/using-sql-server/5257/
Write a query which joins the Artist table to the Album table using an inner join on the Artist_ID column. Select the Artist column and run the query.
The artist names will appear multiple times.
Add a GROUP BY clause to group the rows by the Artist column.
Now add columns to calculate the following values for each artist:
Value to calculate |
---|
The count of albums. |
The sum of US sales. |
The average of US sales. |
Sort the query in descending order of the count of albums and run the query again.
You could format the last two columns if you like.
Add a WHERE clause to the query so that it only includes albums which reached number 1 in the US Billboard 200 chart.
The Rolling Stones rolled right down that list!
Add a HAVING clause which filters the results to show only artists with average sales of 10 million or more.
Country music and guns: we must be using US chart data!
Save the script as Chart Topping Groups.sql and then close it.
You can find other training resources for the subject of this exercise here:
Kingsmoor House
Railway Street
GLOSSOP
SK13 2AA
Landmark Offices
99 Bishopsgate
LONDON
EC2M 3XD
Holiday Inn
25 Aytoun Street
MANCHESTER
M1 3AE
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