SQL | Aggregation and grouping exercise | Show continents/countries having lots of events

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The answer to the exercise will be included and explained if you attend one of more of the courses listed below!

Software ==> SQL  (198 exercises)
Version ==> Any version of SQL Server
Topic ==> Aggregation and grouping  (8 exercises)
Level ==> Average difficulty
Courses ==> Introduction to SQL  /  Fast-track SQL
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Create a query listing out for each continent and country the number of events taking place therein:

List of events

The first few of the 42 rows you should get from this query, if you sort the results by country name.


You'll need to join the tblContinent, tblCountry and tblEvent tables.  All good practice!

Now change your query so that it omits events taking place in the continent of Europe:

Events excluding Europe

You should now be down to 25 rows.


Finally, change your query so that it only shows countries having 5 or more events:

Countries with lots of events

You should now be down to 3 rows.


A thought: you should just have used every one of the SFWGHO letters!

Save your query as Post Brexit events, then close it down.

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