Consider a table hierarchy with supertable STUDENT and subtables BACHELOR_STUDENT, MASTER_STUDENT and PHD_STUDENT. Both bachelor and master
Question:
Consider a table hierarchy with supertable STUDENT and subtables BACHELOR_STUDENT, MASTER_STUDENT and PHD_STUDENT. Both bachelor and master students pass when they achieve at least 50%. PhD students pass when they achieve at least 70%. Illustrate using an SQL query how polymorphism can be useful.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Principles Of Database Management The Practical Guide To Storing Managing And Analyzing Big And Small Data
ISBN: 9781107186125
1st Edition
Authors: Wilfried Lemahieu, Seppe Vanden Broucke, Bart Baesens
Question Posted: