MySQL / Having
- Show only those manager_id s who handle more than 5 employees
- Count the total no of employees for each department. Don’t consider employees of job_id AS_PRESS and also consider only those departments where total no of employees is greater than 5
- Group employees based on the first 3 digit of their phone number. Avoid employees from department no 10 or 20 or 60 and also avoid those groups where total salaries of employees is less than 50000.