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lab complete #13

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1 change: 1 addition & 0 deletions answers/exercise1.sql
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SELECT * FROM Enrolments e LEFT JOIN Students s ON e.StudentID = s.StudentID;
1 change: 1 addition & 0 deletions answers/exercise2.sql
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SELECT * FROM Enrolments e INNER JOIN Students s ON e.StudentID = s.StudentID;
1 change: 1 addition & 0 deletions answers/exercise3.sql
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SELECT * From Enrolments e RIGHT JOIN Students s ON e.StudentID = s.StudentID;
1 change: 1 addition & 0 deletions answers/exercise4.sql
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SELECT COUNT(Country) FROM Students GROUP BY Country;
1 change: 1 addition & 0 deletions answers/exercise5.sql
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SELECT COUNT(Country) FROM Students GROUP BY Country ORDER BY COUNT(Country) DESC;
1 change: 1 addition & 0 deletions answers/exercise6.sql
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SELECT COUNT(Country) FROM Students GROUP BY Country HAVING COUNT(Country) > 10 ORDER BY COUNT(Country) DESC;