I want the ER diagram for the below case study along with
1. One query – using 1 table only
2. Four queries – using more than 1 table
ase Studv- Emergency Room In our Emergency Room (ER), we have three distinct types of workers: receptionists, nurses, and doctors. Any of the workers can in fact be a patient. Each person in the proposed system, be it a patient or a worker has a last, a first, possibly a middle
OR
OR