SQL HAVING Clause

SELECT name_of_column, aggregate_function(name_of_column)
FROM name_OF_table
WHERE name_of_column operator value
GROUP BY name_of_column
HAVING aggregate_function(name_of_column) operator value;

SELECT Student_details.Student_name, Student_attendance.Roll_number, COUNT(Student_attendance.Attendance) AS Attendance
FROM (Student_attendance
INNER JOIN Student_details
ON Student_attendance.Roll_number=Student_details.Roll_number)
GROUP BY Student_name
HAVING COUNT(Student_attendance.Attendance) > 75;

SELECT Student_details.Student_name, Student_attendance.Roll_number, COUNT(Student_attendance.Attendance) AS Attendance
FROM (Student_attendance
INNER JOIN Student_details
ON Student_attendance.Roll_number=Student_details.Roll_number)
WHERE Student_name="তামজীদ হসান" OR Student_name="মিনহাজুর রহমান"
GROUP BY Student_name
HAVING COUNT(Student_attendance.Attendance) > 90;