QUESTION 6 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID: Integer, VitaminName: String, VitaminPercentage) A Fruit have unknown ID? Yes. O No, violates referential integrity constraint. O No, violates entity Integrity constraint No, violates domain constraints.
Q: QUESTION 2 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin…
A: Two Fruits can't have same name even the Fruit ID is different. Because, Name field is having UNIQUE…
Q: Consider the following relations in the relational schema for a database that keeps track of…
A: Given: Consider the following relations in the relational schema for a database that keeps track of…
Q: QUESTION 3 Consider the following database schema for a library. Book (BookiD:int,…
A: Answer :-- True
Q: Question1: Consider the Entity Relational (ER) schema of relation R= (A, B, C, D, E(E1, E2));…
A: Since this question has multiple subparts we will answer only three. If you want any specific…
Q: Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID:…
A: Primary key of one table when used in another table is referred as foreign key. Foreign key need not…
Q: onsider the database schema below for hotels in countries. A country have many hotels, and the same…
A: QUESTION 15 Consider the database schema below for hotels in countries. A country have many…
Q: Consider the database schema below for cities in countries. A country have many cities, and the same…
A: Domain Constraint: It specifies that the value taken b the attributes in a relation must contain an…
Q: uestion Consider the following database schema. CUSTOMER (CID, NAME, STREET, CITY, STATE, AGE) SALE…
A:
Q: Consider the database schema below. Fruit (ID: integer. Name: String ) Vitamin (FruitID: Integer.…
A: In the Fruit table, Name is not a primary key. Key constraint states thate all the values of primary…
Q: Consider the database schema below for cities in countries. A country have many cities, and the same…
A: Given: Consider the database schema below for cities in countries. A country have many cities, and…
Q: QUESTION 4 Consider the following database schema for a library. Book (BooklD:int,…
A: Here is your answer
Q: For a relation named X with attributes (A. B, C, D, E, E), where the primary key of X = { A, C, F },…
A: 4NF data base i given below
Q: QUESTION 5 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin…
A: Given: To choose correct option.
Q: QUESTION 2 Consider the database schema below: Company (CompnayID: integer, CompnayName:…
A: Definition of Candidate Key in DBMS: Candidate keys are super keys that don't have any redundant…
Q: Consider the database schema below: Company (ID: integer, Name: String (unique), Address)…
A: We are given two relations and we are asked if there could be same Company name with two different…
Q: QUESTION 6 Consider the following database schema for a library. Book (BooklD:int,…
A: The answer is True.
Q: Consider the database schema below for cities in countries. A country have many cities, and the same…
A: Database schema provides the logical view of the database with the relation between them associated.…
Q: Consider relation R in the following E/R diagram. If E1 has 3 entities, E2 has 4 entities, and E3…
A: Given Data : Number of entities in E1 = 3. Number of entities in E2 = 4. Number of entities in E3 =…
Q: Consider a relation with schema R(A,B,C,D,E,F,G). Choose the key for the relation for the following…
A: According to the question we need to consider a relationship with schema R(A, B, C, D, E, F, G).…
Q: Question 3 a) Normalize table 1 to a set of Third Normal Form (3NF) relations. Your answer should…
A: Primary key for the given relation is, (PatientID , DiseaseID) The Fd's possible are PatientID…
Q: Consider the following database schema for a library. Book (BookID:int, BookTitle:string(unique),…
A: Here the bookid is primary key, and therefore in building a borrowing-record it used as a…
Q: Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID:…
A: The question is to choose the correct option from the given options in the question.
Q: Consider the database schema below. Fruit (ID: integer, Name: String ) Vitamin (FruitID: Integer.…
A: - We need to select the correct among the provided for the provided relation. - The question is to…
Q: Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID:…
A: The answer is ,no,it violates the domain constraint. Below is explanation:
Q: Is it possible that a legal database instance d (one that satisfies all keys) on your normalized…
A:
Q: Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID:…
A: Department is a table with columns DepartmentID of Integer type, DepartmentName of String type and…
Q: QUESTION 3 Consider the database schema below: Company (CompnayID: integer, CompnayName:…
A: Integrity constraint violations occur when an insert, update, or delete statement violates a primary…
Q: I need the answer as soon as possible
A: The above question the 4 relation schema and explain and the find a weak entity in the below step
Q: he database relation R(a, b, d, e, f) ibute b and d are dependent only on a; e y on d; and f only on…
A: The functional dependency possible are a->b, d d -> e, f Here a is primary key for the given…
Q: QUESTION 5 Consider the database schema below. Fruit (ID: integer. Name: String (unique)) Vitamin…
A: Two tables are given with primary key ID in fruit table. Vitamin table has composite key fruitID…
Q: Consider the following conceptual schema of a sample database domain that contains information about…
A: Solution :- A constraint that establishes the relationship between two sets of attributes in which…
Q: Consider the following relational database schema that contains information about employees and…
A: {pid,pname} {pid,pname,budget} {pname,managerid} {pname,budget,managerid}
Q: Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin (FruitID:…
A: The same value of VitaminPercentage can be entered for different FruitID. Because, as given, the…
Q: functional dependencies, what is the highest normal form the data model complies to? Note: Primary…
A: Primary key for the given relation is JobID A relation is said to be in 1NF if none of the attribute…
Q: Consider the following database schema for a library. Book (BookID:int, BookTitle:string(unique),…
A: CPR is the type of int
Q: QUESTION 7 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin…
A: Incorrect options Referential Integrity Constraint :A foreign key should have a primary key that…
Q: UESTION 14 Consider the database schema below for cities in countries. A country have many…
A: No, violates key constraint. Key constraint is violated when value in the new tuple is already…
Q: Consider the two relations with their schemas as listed below: Employee(name, suriR birtbRats…
A: The FOREIGN KEY CONSTRAINT IN SQL is used to ensure the referential integrity of the data in one…
Q: Consider the database schema below. Fruit (ID: integer. Name: String (unique)) Vitamin (FruitID:…
A: Here for the relation Vitamin, primary key is (FruitID, VitaminName) It means for any row, if values…
Q: Consider the Database schema on the relations Courses (Number, Faculty, Course Title, Tutor)…
A: 1) 2) 3)
Q: (c) The following relational schema form part of a database held for library borrowing system.…
A:
Q: Consider the database schema below. Fruit (ID: integer, Name: String ) Vitamin (FruitID: Integer.…
A: Here, I have to choose an option for the above question.
Q: QUESTION 5 Consider the database schema below: Company (ID: integer, Name: String (unique),…
A: Domain constraints defines valid set of values for an attribute. The data type of domain includes…
Q: QUESTION 4 Consider the following database schema. Customer (IDrint, name:String) Order…
A: Given Database Schema : Customer(ID:int; name:String)Order(OrderID:int; CustomerID:int;…
Q: Consider a relation with schema R(A,B,C,D,E,F,G). Choose the key for the relation for the following…
A: Given set of Functional Dependency : A --> B B --> C C --> D D --> E E --> F F…
Q: QUESTION 5 Consider the following database schema for a library. Book (BookID:int,…
A: We have given a dbms tables for Book, Borrowing-Record, Customer. One data member of Book table…
Q: QUESTION 2 Consider the database schema below. Fruit (ID: integer. Name: String (unique)) Vitamin…
A: EXPLANATION: The entity set that is utilized to uniquely identify an entity inside its entity set…
Q: 1) Why may we need to decompose relations in a database system? Define lossy and lossless…
A: According to the information given:- we have to know the reason behind the decompose relation in…
Q: Database Systems Question 3. A relation R is given which is R(A,B,C,D,E). It has the following…
A: Answer to the above question is in step2.
Q: Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID:…
A: Employee is a table with columns ID of integer type, name of String type and DepartmentID of integer…
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Solved in 3 steps
- QUESTION 3 Consider the database schema below: Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID: Integer, DepartmentName: String, CompanyID: Integer) Employee (ID:integer; name:String, DepartmentID:intger (not null)) Is it valid for an employee to work in two different departments? No, violates entity Integrity constraint No, violates key constraint. Yes. No, violates domain constraints. No, violates referential integrity constraint.Database QUESTION Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries. Country (ID: integer, Name: String (unique)) City (serialNo: integer (unique, not null), CountryID: Integer, CityName: String, Population: integer) A city can have unknown CityName? No, violates domain constraints. Yes. No, violates entity Integrity constraint No, violates key constraint. No, violates referential integrity constraint.QUESTION 4 Consider the database schema below: Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID: Integer, DepartmentName: String, CompanyID: Integer) Employee (ID:integer; name:String, DepartmentID:intger (not null)) Is it valid in the department relation, that two different departments to have the same value of CompanyID? No, violates domain constraints. No, violates key constraint. Yes. No, violates referential integrity constraint. No, violates entity Integrity constraint.
- QUESTION 5 Consider the database schema below: Company (ID: integer, Name: String (unique), Address) Department (No: integer (not null), CompanyID: Integer, DepartmentName: String) Is it valid for Department to have unknown No? No, violates key constraint. No, violates referential integrity constraint. Yes. No, violates entity Integrity constraint No, violates domain constraints.QUESTION 6 Consider the database schema below: Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID: Integer, DepartmentName: String, CompanyID: Integer) Employee (ID:integer; name:String, DepartmentID:intger (not null)) Is it valid in the employee relation to have the same value of DepartmentID for three different Employees? No, violates Entity Integrity constraint No, violates referential integrity constraint. No, violates Key constraint. Yes. No, violated Domain ConstraintsQUESTION 17 Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries. Country (ID: integer, Name: String (unique)) City (serialNo: integer (unique, not null), CountryID: Integer, CityName: String, Population: integer) The same country name can be repeated with two different IDs in Country relation? No, violates key constraint. No, violates entity Integrity constraint No, violates domain constraints. No, violates referential integrity constraint. Yes.
- QUESTION 15 Consider the database schema below for hotels in countries. A country have many hotels, and the same hotel chain (name) are available in different countries. Country (ID: integer, Name: String (unique)) Hotel (CountryID: Integer, HotelName: String, ManagerID: Integer) A hotel can have unknown manager? No, violates key constraint. Yes. No, violates domain constraints. No, violates entity Integrity constraint No, violates referential integrity constraint.QUESTION 7 Consider the database schema below: Company (ID: integer, Name: String (unique), Address) Department (No: integer, CompanyID: Integer, DepartmentName: String) Is it valid to have the same Company name to be repeated with two different IDs in Company relation? Yes. No, violates key constraint. No, violates entity Integrity constraint No, violates referential integrity constraint. No, violates domain constraints.QUESTION 14 Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries. Country (ID: integer, Name: String (unique), SN: serialNumber (int)(unique)) City (serialNo: integer (unique, not null), CountryID: Integer, CityName: String, Population: integer) The same country (ID , name) can be added twice in Country relation with different SN? No, violates entity Integrity constraint No, violates referential integrity constraint. No, violates key constraint. Yes. No, violates domain constraints.
- Let us consider the following relational database. Students(stuID, lastName, firstName, major, gpa) Faculty(facID, name, deptName, rank) Classes(classNhmber, facID, schedule, room) Enrolls(stuID, classNumber, grade) The primary keys are underlined. The referential integrity constraints are as follows: The column facID of relation Classes that references table Faculty, The column of stuID of relation Enrolls that references table Students, and The column classNumber of relation Enrolls that references table Classes. The following SQL statement is intended to define the table Students. However, this statement does not work correctly. CREAT TABLE Students( lastName VARCHAR(20), firstName VARCHAR(20), major VARCHAR(40) gpa DECIMAL(3,2), PRIMARY KEY(stuID)); However, this statement does not work correctly. Briefly explain why and list the corrected SQL statement.The following is a relational schema for a database to document sharksightings for a research project. Primary keys are underlined. ForeignKeys are identified by FK, and their name indicates the attribute that theyreference.________________________________________________________________Sharks(shark_id:Integer, name:String, species_name:String,tagged_by_mission_id:Integer (FK))Sightings(shark_id:Integer (FK), sighting_num:Integer,sight_time:Timestamp, lat:Real, lng:Real, ocean:String, mission_id:Integer(FK))Missions(mission_id:Integer, start_date:Date, end_date:Date,vessel_id:Integer (FK))ResearchVessels(vessel_id:Integer, name:String)________________________________________________________________Sharks identified by a unique id, have a name which is not necessarilyunique, and a scientific species name.All Sharks are tagged and are sighted by Research Vessels, which areresearch ships that go on research Missions throughout the year. EachMission has a start and end date. Shark…Given the following relational schema (Hint: the bold text represents a primary key), Professor(emp_num, emp_fname, emp_lname, emp_dob, dept_code, prof_ext)Class (class_code, course_code, class_section, class_time, class_room, emp_num)Course (course_code, course_name, crs_credits, dept_code) Write a relation algebra to find all "Database Design and Implementation" classes including section, time, room, and professor name (first name and last name). Hint: "Database Design and Implementation" is the course name