Question

Consider the following table and answer the following:
Table - Hospital
ID
DEPARTMENT
OPD-DAYS
DOCTOR-NAME
H201 ENT
MWF
Akash Arora
H208 Oncology
TTS
Dharma Sharma
H207 Pediatrics
MWF
Sanjay Singh
a) Identify suitable primary key from the above table.
b) Add a new record with the following data:
('H608', 'Cardioloogy','TTS', 'Vinita Wahi')
c) Write a select query to display records of those doctors whose OPD-DAYS are 'MWF
d) Write query to select all records from table hospital
formula to he used:​

Answer 1

Answer:

which class question I don't know the answer sorry about it.