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CREATE TABLE table1 ( `name` VARCHAR(6), `role` INTEGER, `creation_date` VARCHAR(10) ); INSERT INTO table1 (`name`, `role`, `creation_date`) VALUES ('Tom', '2', '2020-07-01'), ('Diana', '3', '2020-07-01'), ('Rachel', '3', '2020-07-01'), ('Michel', '3', '2020-08-01');
SELECT SUM(`role` = 2) totalInstructors , SUM(`role` = 3) totalStudents, `creation_date` FROM table1 GROUP BY `creation_date` ORDER BY `creation_date`
totalInstructors
totalStudents
creation_date
1
2
2020-07-01
0
1
2020-08-01