sql count matching group by
# To count the number of teachers in each department, including
# rows where COUNT(t.name) == 0
SELECT d.name,COUNT(t.name) FROM teacher t
RIGHT JOIN dept d ON (t.dept=d.id) GROUP BY d.name;sql count matching group by
# To count the number of teachers in each department, including
# rows where COUNT(t.name) == 0
SELECT d.name,COUNT(t.name) FROM teacher t
RIGHT JOIN dept d ON (t.dept=d.id) GROUP BY d.name;Copyright © 2021 Codeinu
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