Write a query to show the count of students by city

Description: Show the number of students in each city.

Tables: the exercises use the students (id, name, city, marks, course_id) and courses (id, course_name) tables, with the data from our MySQL INSERT chapter. The students are: Robin (Delhi, 85), Maria (Mumbai, 92), John (Pune, 78), Asha (Jaipur, 88), Vikram (Delhi, 65), Neha (Mumbai, 45).

Hint:

• Use COUNT(*).
• Group the rows with GROUP BY city.

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MySQL query for the count of students by city

SELECT city, COUNT(*) AS total_students
FROM students
GROUP BY city
ORDER BY city;

Output:

How it works

• GROUP BY city makes one group for each city.
• COUNT(*) counts the rows of each group.

Read GROUP BY and HAVING.

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