Question: Code (a, b) in SQL Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting theatres, movies played by

Code (a, b) in SQL

Code (a, b) in SQL Q1. Consider the following tables (relations) that

Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting theatres, movies played by theatres, movies liked by persons, and players who star in movies. A person can like several movies; a movie can be liked by many persons. A person can go to several theatres, and a theatre is visited by many persons. A theatre can play many different movies, and a movie can be played by several theatres. A player may star in several movies and a movie may involve many players, further a player may be a person, that is, some persons are players. Please note that in all the queries some means at least one Goes(person, theatre) Plays(theatre, movie) Likes(person, movie) Stars(movie, player) Code (a, b) in SQL a) Find persons who go only to theatres that play some movies liked only by Trump? b) Find movies where Clinton stared (as player) and which were played by at least 100 theatre visited by Biden

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Code (c, d) using Relational Algebra: Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting theatres, movies played by theatres, movies...

code following using tuple relational calculus. Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting theatres, movies played by...

Code (e, f) in tuple relational calculus: Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting theatres, movies played by theatres,...

Code a) and b) in SQL Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting hospitals, treatments offered by hospitals, treatments liked...

Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting hospitals, treatments offered by hospitals, treatments liked by persons, and...

Code the following in relational calculus: 1) Find persons who go only to hospitals that offer some of the treatments they like 2) Find every treatment offered by at least one hospital and effects...

Q1. Consider the following tables (relations) that contain information (all stored as names) about persons visiting hospitals, treatments offered by hospitals, treatments liked by persons, and...

Find the following in Relational Algebra: 1) Find every person who does not visit any hospital which offers a treatment effective for influenza? 2) Find every hospital which offers treatments liked...

Need help with the document attached. The company that this paper is about is Nvidia. Project Descriptions SEC 10-K Paper You will be asked to select a company that is publically traded. You must...

Write all the journal entries Product Name Description Fish Finders Helm module using sonar to identify fish Propellers Propulsion unit designed specifically for V-drives Downriggers Transom mounted...

Consider the following discrete probability distribution of payoffs for two securities, A and B, held in the trading portfolio of an FI: Which of the two securities will add more market risk to the...

It is not enough to interrupt with your advertising, you also need to: engage activate educate overwhelm

Seved Help 14 Wisconsin Snowmobile Corp. is considering a switch to level production Cost efficiencies would occur under level production, and aftertax costs would decline by $31,500, but inventory...

Economist John Taylor has suggested that the Fed use the following rule for choosing its target for the federal funds interest rate (r): r = 2% + + 12 (y y*) / y* + 12 ( *), where is the average...

Suppose banks install automatic teller machines on every block and, by making cash readily available, reduce the amount of money people want to hold. a. Assume the Fed does not change the money...

Consider two policiesa tax cut that will last for only 1 year and a tax cut that is expected to be permanent. Which policy will stimulate greater spending by consumers? Which policy will have the...