SQL Exercise: Find the country where Football EURO cup 2016 held
SQL soccer Database: Joins Exercise-6 with Solution
6. From the following tables, write a SQL query to find out which country hosted the 2016 Football EURO Cup. Return country name.
Sample table: soccer_country
Sample table: soccer_city
Sample table: soccer_venue
Sample Solution:
SQL Code:
SELECT country_name
FROM soccer_country a
JOIN soccer_city b ON a.country_id=b.country_id
JOIN soccer_venue c ON b.city_id=c.city_id
GROUP BY country_name;
Sample Output:
country_name -------------- France (1 row)
Code Explanation:
The said query in SQL that selects the unique country names of all countries that have soccer venues.
The JOIN clause joins the soccer_country and soccer_city table based on the country_id column and the soccer_city and soccer_venue tables are joins based on the city_id column.
The result set are grouped by country name.
Relational Algebra Expression:

Relational Algebra Tree:

Practice Online
Sample Database: soccer

Query Visualization:
Duration:

Rows:

Cost:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.
Previous SQL Exercise: Find the scorer of only goal along with his country.
Next SQL Exercise: Find the player who socred first goal of EURO cup 2016.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
SQL: Tips of the Day
What is the best way to paginate results in SQL Server?
SELECT * FROM ( SELECT ROW_NUMBER() OVER ( ORDER BY OrderDate ) AS RowNum, * FROM Orders WHERE OrderDate >= '1980-01-01' ) AS RowConstrainedResult WHERE RowNum >= 1 AND RowNum < 20 ORDER BY RowNum
Database: SQL Server
Ref: https://bit.ly/3MGrNlk
- Weekly Trends
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join
- JavaScript functions Exercises
- Python Tutorial
- Python Array Exercises
- SQL Cross Join
- C# Sharp Array Exercises
We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook