Question: Question 1 . [ 2 points ] Consider the following relational database schema R 1 ( A 1 , A 2 , A 3 ,

Question 1.[2 points]
Consider the following relational database schema
R1(A1,A2,A3,A4)
R2(B1,(B)2,B3,B4)
Suppose we have a database that contains an instance of relation R1 and an instance of relation R2 and that the data integrity constraint R1[A1]subeR2[B2] is satisfied by this database. Suppose that the database instance of relation R1 has 5 tuples. What can you say about the number of tuples in R2? Explain your answer.
Question 1 . [ 2 points ] Consider the following

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 Programming Questions!

Q:

Problem 1. (4 points) Consider the following relational database: student ( student_number , name ) course ( course_number , year , semester , classroom ) registration ( ? ? ? ) (a) (1 points)...

Q:

Question 1 (2 points) Consider the following (V/O)E. Write some commands in Matlab to find the matrix A of the ss presentation. Which of the following is a correct one? Please submit your m file and...

Q:

Question 1 (2 points) Consider the following three systems: 1. A helicopter drone used for military surveillance. 2. A dungeon and dragon game app on a phone. 3. A reservation system used for...

Q:

Given that the price of the bond is $1019.17, what is the current yield of the bond? Enter your answer as a percentage. Do not include the percentage sign in your answer. Enter your response below....

Q:

Question 1 ( 2 points): Consider the following two stocks: 1. Stock A is expected to provide a dividend of $10 a share forever. 2. Stock B is expected to pay a dividend of $5 next year. Thereafter,...

Q:

Heuristic Query Optimization Consider the following relational database schema (primary keys are underlined) and SQL queries: Hotel (hotelNo, hotelName, city) Room (roomNo, hotelNo, type, price)...

Q:

Please help with this DBMS crouse assignment, thank you in advance :) Consider the following relational database schema: employee(employee-name, employee-id, street, e-city) works(employee-id,...

Q:

Exercise 3 ( 3 0 % ) Consider the following relational database schema that describes information about stores that sell bags and shoes, as well as the suppliers of the products. The relational...

Q:

Question 1 (30 points) Consider the following schemas: Employees (eid, ename, age) Projects (pid, pname, mgr_eid) The key fields are bold and underlined. WorkOn.eid refers to Employees.eid WorkOn.pid...

Q:

Question 3 [6 points] Consider the following relational schema: R(M,P,Q,R,T), FD = {M P, R PQ, PQ R}. Can you give an example of a database instance that violates two of the functional dependencies...

Q:

You are evaluating a project to produce a movie and are wondering how much you can afford to pay the actors. Actors' Compensation The shooting of the movie will commence in month 5 and will take 12...

Q:

Find the great-circle distance from St. Paul (longitude 9.31o W, latitude 45o N) to Oslo (longitude 10.5o E, latitude 59.6o N)

Q:

Assume Darrin died in 2 0 2 5 . Which filing status can Kathi use on her 2 0 2 6 income tax return? Group of answer choices Single Head of Household Married Filing Jointly Qualifying Widow

Q:

What could explain the simultaneous increases in the price of lithium and the production of lithium?Use supply and demand curves to explain your answer. Hint:Price and equilibrium quantity have both...