Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Place(address, otherInfo) Register all addresses. Perform(songID, ssn) Register which songs are performed by which musicians AlbumProducer(ssn, albumIdentifier, copyrightDate, speed, title) Registers albums and their producers

Place(address, otherInfo) Register all addresses.
Perform(songID, ssn) Register which songs are performed by which musicians
AlbumProducer(ssn, albumIdentifier, copyrightDate, speed, title) Registers albums and their producers (who are musicians).
Musicians(ssn, name, annualIncome) Registers the ssn of musicians and their names and annual incomes
Instruments(instrID, iname, key) Registers instruments
Plays(ssn, instrID) Registers which musicians play which instruments
SongsAppears(songID, authorSSN, title, albumIdentifier) Registers songs and which albums they appear. Every song must have exactly one author who is a musician, and appears in exactly one album.
Lives(ssn, address, phone) Registers where musicians live and which phones they use.

Use relational algebra, relational calculus and SQL to express the following query.

Find the instruments (InstID) played by any musician named 'John'

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

DATABASE Administrator Make A Difference

Authors: Mohciine Elmourabit

1st Edition

B0CGM7XG75, 978-1722657802

More Books

Students also viewed these Databases questions

Question

6. Discuss the steps involved in conducting a task analysis.

Answered: 1 week ago

Question

8. Explain competency models and the process used to develop them.

Answered: 1 week ago