SQL | Archived exercise | Number of events for each country

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 relevant Wise Owl course (sadly, only in the UK for now).

Software ==> SQL  (198 exercises)
Version ==> Any version of SQL Server
Topic ==> Archived  (70 exercises)
Level ==> Relatively easy
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help).

You need a minimum screen resolution of about 700 pixels width to see our exercises. This is because they contain diagrams and tables which would not be viewable easily on a mobile phone or small laptop. Please use a larger tablet, notebook or desktop computer, or change your screen resolution settings.

If you haven't already got it set up in SQL server, restore the Historical Events database from the above folder.

Create a query to show the number of events for each country (with the most "eventful" country coming at the top of the list):

SQL exercise - Aggregation and grouping (image 1)

Proving that the UK is the most interesting place to live?

To help you, here is the basic outline for the query you need to write:

SQL exercise - Aggregation and grouping (image 2)

All you have to do is fill in the details!

Save your query as Countries by event.sql, then close it down.

This page has 0 threads Add post