Need ERD diagram for this -Students can register for many courses|-Each course can have many students in it.-Hint: You will need to create a third table.This database will allow students to view courses they are registered for.

There are 3 Entities namely Student, Enrolment, Course Enrolment is a third table which holds all…

Answered: This database will allow students to…

Engineering

Computer Science

This database will allow students to view courses they are registered for.

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter6: Additional Database Objects

Section: Chapter Questions

Problem 7RQ

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When working with a relational database, a select operation may be used to reduce the amount of space used by a table by removing columns that meet certain requirements.Is this the right answer or the wrong answer?
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assume that a database has a table named Stock, with thefollowing columns:Column Name TypeTrading_Symbol nchar(10)Company_Name nchar(25)Num_Shares intPurchase_Price moneySelling_Price money Write a Select statement that returns all the columns from the rows where Trading_Symbol starts with "SU".
An index may speed up queries, but it's usually a terrible idea to create an index for every property or combination of properties that might be used as search keys. I'd want to know more about this.
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