WISE OWL EXERCISES
SQL EXERCISES
SQL EXERCISES
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SQL | Calculations exercise | Use a CASE statement to divide countries into groups
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.
The answer to the exercise will be included and explained if you attend the course listed below!
| Software ==> | SQL (192 exercises) |
| Version ==> | Any version of SQL Server |
| Topic ==> | Calculations (7 exercises) |
| Level ==> | Average difficulty |
| Course ==> | Introduction to SQL |
- Go into SQL Server Management Studio;
- Open the SQL file you've just unzipped (you can press CTRL + O to do this); then
- Execute this script.
This will generate the database that you'll need to use in order to do this exercise (note that the database and script 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).
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Write a query to divide countries into these groups:
| Continent id | Belongs to | Actual continent (for interest) |
|---|---|---|
| 1 or 3 | Eurasia | Europe or Asia |
| 5 or 6 | Americas | North and South America |
| 2 or 4 | Somewhere hot | Africa and Australasia |
| 7 | Somewhere cold | Antarctica |
| Otherwise | Somewhere else | International |
Your query (based only on the tblCountry table) should show the following results:
The first few countries, sorted in reverse alphabetical order by your new column.
Save this query as Continental Drift, then close it down.