display the doctor has referred any patients to have a blood sugar test performed or not. If the doctor referred patients, it must display 'Patients referred', or 'No patients. referred' if the doctor did not refer any patients. Call the new column 'Referrals'.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Databases 

Create a query that displays the Doctor_ID, Doctor Surname, and whether or not
the doctor has referred any patients to have a blood sugar test performed or not. If
the doctor referred patients, it must display 'Patients referred', or 'No patients
referred' if the doctor did not refer any patients. Call the new column 'Referrals'.
Sample Results:
DOCTOR ID DOCTOR SURNAME
Coetzee
Hasim
DR001
DR002
DR003
DR004
Mbeku
Phillips
REFERRALS
Patients referred
Patients referred
No patients referred
Patients referred
Transcribed Image Text:Create a query that displays the Doctor_ID, Doctor Surname, and whether or not the doctor has referred any patients to have a blood sugar test performed or not. If the doctor referred patients, it must display 'Patients referred', or 'No patients referred' if the doctor did not refer any patients. Call the new column 'Referrals'. Sample Results: DOCTOR ID DOCTOR SURNAME Coetzee Hasim DR001 DR002 DR003 DR004 Mbeku Phillips REFERRALS Patients referred Patients referred No patients referred Patients referred
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