You have been provided with the following, incomplete, ERD for a database to record students’ results in units. List and explain what would need to be added to this ERD to enable a record of students’ results in units. You should assume that a student can take a unit several times, for example, if they fail, they can take the unit again until they record a passing grade. You can also assume that each unit is only offered once each year.

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
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You have been provided with the following, incomplete, ERD for a database to record students’ results in units.

List and explain what would need to be added to this ERD to enable a record of students’ results in units. You should assume that a student can take a unit several times, for example, if they fail, they can take the unit again until they record a passing grade. You can also assume that each unit is only offered once each year. 

Unit
Student
PK
Unit Code
PK
Student Number
Unit Title
Student Name
Credit Points
Course
Transcribed Image Text:Unit Student PK Unit Code PK Student Number Unit Title Student Name Credit Points Course
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