Examine the business rule:
Each student can take up multiple projects and each project can have multiple students.
You need to design an Entity Relationship Model (ERD) for optimal data storage and allow for generating
reports in this format:
STUDENT_ID FIRST_NAME LAST_NAME PROJECT_ID PROJECT_NAME PROJECT_TASK
Which two statements are true in this scenario?
A.
The ERD must have a 1:M relationship between the STUDENTS and PROJECTS entities.
B.
The ERD must have a M:M relationship between the STUDENTS and PROJECTS entities that must be
resolved into 1:M relationships.
C.
STUDENT_ID must be the primary key in the STUDENTS entity and foreign key in the PROJECTS entity.
D.
PROJECT_ID must be the primary key in the PROJECTS entity and foreign key in the STUDENTS entity.
E.
An associative table must be created with a composite key of STUDENT_ID and PROJECT_ID, which is the
foreign key linked to the STUDENTS and PROJECTS entities.
Explanation:
http://www.oracle.com/technetwork/issue-archive/2011/11-nov/o61sql-512018.html