Consider the following scenario: you have a relation that contains x, y coordinates, and the names of eateries.Assume, further, that the only questions that will be asked will be of the following types. The query specifies alocation and inquires as to whether or not there is a restaurant located exactly at that location. If you were tochoose between R-Tree and B-tree, which one would you choose? Why?

Introduction: Consider the names of the restaurants and the x and y coordinates associated with the…

Answered: Consider the following scenario: you…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Similar questions

Q1: Consider the following relations for a Guest Room reservation application database. Room (room_id, room_ availability, booking date. Cust id. booking details) Customer(Cust id. CNIC, E name. L name, Address, Contact number, MembershipNo.) Assume that each Hotel of a city has different number of rooms where each room can be booked by any customer at any time subject to its availability. If we apply a natural join on the relations Room and Customer in this database, what does the resulting relation schema look like? Explain the result of this operation. Show the Functional Dependencies in this resulting relation. Is it in 2NF? Is it in 3NF? Why or why not? (State assumptions, if you make any.)
Suppose a single relation (table) is used to record the information about students’ enrollment in courses. We assume that each student may enroll in more than one course and one course is assigned to one instructor. All questions below are based on the following ENROLLMENT unnormalized table. ENROLLMENT StudentID StuName CourseCode CourseName Grade CreditHr Instructor InstrOffice 1021234 Ali 1102 1201 Database Internet A B 3 3 Zaid Sumaiya 5.01 5.05 1024131 Amina 1201 1401 Internet Operating System C B 3 3 Sumaiya Abdullah 5.05 5.10 1. What would be the First Normal Form (1NF) relation? Identify the primary key. 2. Identify the functional dependencies represented by the attributes shown in the ENROLLMENT table. Label partial or transitive dependency where applicable.
To change the participation constraint on the parent side from partial to total, the foreign key, which would have been NULL, must be changed to NOT NULL. (True or False).
Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: Implement the entity as a new phone table. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply…
The Driver Relationship team wants to ensure that the all driving license IDs in the active drivers table have the length of 7. Alter the ACTIVE_DRIVERS table created in Chapter 8, Activity 1 to check the length of the DRIVER_DRIVING_LICENSE_ID.
convert it to relations that are normalization
A table called "game1" contains three columns and twenty rows, but "game2" has the same column as game1 (ie 3) and fifteen rows. Both tables have 5 rows in common. What is the degree and cardinality of the resulting table if we take union?
Run the problem using Relational Algebra, below the problem I added the needed table. Use self join find the answer (4) Find the name (fname,lname) of the direct supervisor of “Mary Smith”. (“Mary Smith” is an employee). group: emplyeeemployee = {fname, lname, ssn,superssn, departnumber'Mary', 'Smith',111, 222, 11'Green', 'Marjorie',333, 222, 12'Gren', 'Cheryl',222, 777, 14}
30 of 40 Let T(a,b,c) be a relation in which attribute a is not NULL. Consider the SQL query: SELECT * FROM T Tcopy WHERE a NOT IN (SELECT a FROM T WHERE Tcopy.a>10 ); Which of the following RA queries produces the same result as the SQL query above? Select one: O Ja>10(Ta.b.c (T)) O Ja10 (T))
Consider a scenario where you have a table on the left with 10 rows and a table on the right with 5 rows. What is the maximum number of rows that might appear in a right join
You have the table T = (name, ssn, phone number) representing a person. Each name is uniquely identified by ssn, but the same name can have multiple phone numbers. Suppose you break the tables into two tables T1=(name, ssn) and T2= (name, phone number) a) What are the candidate keys of T, T1, and T2, respectively?

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