Consider a database that includes the entity sets student, course, and sectionfrom the university schema and that additionally records the marks that studentsreceive in different exams of different sections. Construct an alternative E-R diagram that uses only a binary relationship between student and section. Make sure that only one relationship exists between a particular student and section pair, yet you can represent the marks that a student gets in different exams.

Q: Consider, for instance, the database used by an airline, which implements snapshot isolation as part…

A: Given: Take into consideration a database for an airline, whereby the underlying database system…

Q: Consider the following scenario and draw an E-R diagram for Mozar. Mozar has decided to store…

A: Entities: ----------------------------------- Album : Attributes: Title, Copyright date Format,…

Q: A relation r(A, B, C) had multi-valued dependencies among all its attributes. It was decomposed for…

A: According to the information given:- we have to find out the mentioned example of what kind of…

Q: Question: Consider the relation: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q), {A, B} is the…

A: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q) Candidate key: {A, B}, {C,D,E}Prime attributes Non…

Q: Consider a database schema with a relation Emp whose attributes are as shownbelow, with types…

A: A schema is a collection of logical structures of data or schema objects. It contains entities and…

Q: Given the following UML. Transform this model to the database schema. Mark the keys & foreign keys.…

A: According to the information given:- We have to transform this given model to database schema.

Q: Model a Triangular Irregular Network (TIN) with an Entity-Relationship diagram. Consider three…

A: Here,discuss  about model a Triangular Irregular Network (TIN) with an Entity-Relationship diagram.…

Q: A relation r(A, B, C) had multi-valued dependencies among all its attributes. It was decomposed for…

A: As given above the table has multivalued dependencies among all its attributes. so 4NF is the normal…

Q: Draw the CONTEXT Digram for the given case study below: "UAETourism & Travel Agency LLC" from this…

A: Answer: I have given answered in the handwritten format in brief explanation

Q: Propose a relation schema for storing the access rights associated with user groups in a distributed…

A: Distributed DBMS A distributed database is a set of interconnected databases that is distributed…

Q: Suppose we have a relational database with five tables. table                    key Attributes…

A: See solution in step No 2

Q: Consider the schemas for the table people, and the tables students and teachers, which were created…

A: Given: Consider the schemas for the table people, and the tables students and teachers, which were…

Q: Suppose a bank utilizes a snapshot isolation database system for its database. Give an example of a…

A: Introduction: The information is recorded on a website set up in such a way that it can be retrieved…

Q: [Question 4] Give an example of a very simple database with 4 training examples and that with the…

A: Below i have answered:

Q: Consider the following scenario and draw an E-R diagram for Mozar. Mozar has decided to store…

A: Introduction :We have to draw an ER-Diagram of the given database.

Q: 1. Consider a schema R = (A, B, C, D, E). Assume that the following set F of functional dependencies…

A: The closure of attribute A is a set of those attributes which can be functionally determined by A…

Q: A relation r(A, B, C) had multi-valued dependencies among all its attributes. It was decomposed for…

A: 1) 4NF: A relation R is in 4NF if and only if the following conditions are satisfied: It should be…

Q: Consider a federated database system in which every local site ensures local serializability, and…

A: Serializability Serializability of the transaction specifies a list of transactions in a schedule…

Q: Write down if the following sentences are true or false.  a. A database system includes both DBMS…

A: Since we can answer only up to one question and three subparts. So we'll answer the first three…

Q: Suppose you wish to perform keyword querying on a set of tuples in a database, where each tuple has…

A: Term Frequency (TF) in its simplest form is defined as the number of times a term occurs in a…

Q: Consider a university database for the scheduling of classrooms for -final exams. This database…

A: ER diagram:   Data requirements: The major characteristics of the semester examination system…

Q: Should the cardinality between entities be translated/read from both ends of the notation when…

A: Cardinality: Cardinality refers to the maximum or lowest number of components that may be used on…

Q: Given the following relation R and its functional dependencies: R(workerNumber, repairNumber,…

A: From the given R(workerNumber, repairNumber, workerName, machineNumber, spentTime, repairDate,…

Q: Let's imagine there is only place for one additional student in the course, but two people wish to…

A: Both students can't take the last seat that's open in a database system because in the database each…

Q: Consider a database system that utilizes snapshot isolation, such as one for an airline. For…

A: Think of a database system for an airline that employs snapshot isolation. The following example…

Q: A database of application of wholesaler can be modelled by means of the relations price, in_stock…

A:

Q: Consider a database for a bank where the database system uses snapshot isolation.Describe a…

A: Database: The database is the storage of information, it is a collection of information. The…

Q: Consider the relation Employee(Ename,Pname,Dname) with the data. Employee Ename Pname Dname smith…

A: Given MVD relationship: Ename ->-> Pname Ename is said to be multi-valued dependent on Pname…

Q: Consider a schema R = {A,B,C,D,E}and the following set of functional dependencies: {AD->B,…

A: If there is any relation R and we have to check whether the relation is in Boyce–Codd Normal Form…

Q: Consider a database that includes the entity sets student, course, and section from the university…

A: The database is the collection of data and information in the organization’s school or college. The…

Q: Given the following Dentist-patient database schema: Dentist-patient (staffNo, aDate, aTime,…

A: Key for the given relation is (staffNo,aDate,aTime) The functional dependency violating 2NF is…

Q: Draw the E-R diagram for the above, providing the degree and cardinalities Suppose a medical group…

A:

Q: Write the short answers for the given question. Answer in 3-5 line maximum. A. Give examples of…

A: A.  systems in which it may make sense to use traditional file processing instead of a database…

Q: Although the BCNF method guarantees lossless decomposition, it is conceivable to have a schema and a…

A: Introduction: It is feasible to have a lossless decomposition into 3NF itself instead of BCNF. It is…

Q: Consider the database schema below for hotels in countries. A country have many hotels, and the same…

A: Data Base Management System: DBMS is a software that is used to store, manage and use database…

Q: Consider a database used to record the marks that students get in different exams ofdifferent course…

A: According to question :   Considered the following attributes to draw the ER diagram: The entities…

Q: must have a member ID, name and contact number, can be enrolled in one or more gym session. A gym…

A: A well-structured database starts from an effective Entity Relationship Diagram (ERD). For this part…

Q: Propose a relation schema for storing the access rights associated with user groups in a distributed…

A: Authentication for Distributed Systems The main concern in creating a secure distributed system is…

Q: A database of application of wholesaler can be modelled by means of the relations price, in_stock…

A: Algebraic Expresions

Q: Consider a database that includes the entity sets student, course, and sectionfrom the university…

A: Below is the required E-R Diagram: - Explanation: - The ternary relationship is a type of…

Q: Consider the Database schema on the relations   Courses (Number, Faculty, Course Title, Tutor)…

A: 1) 2)   3)

Q: In a database for an airline, consider "snapshot isolation." The question is if a strategy that…

A: Serialization is a mechanism of converting the state of an object into a byte stream. The byte array…

Q: Q. 1 Consider a university database for the scheduling of classrooms for final exams. This database…

A: The database management system is a collection of data and information and SQL languages are used…

Q: a) Consider the given schema. Instructor(id, name, dept, address, age, phn_number) Student(s id,…

A: here we have given the hand written images of mapping cardinalities and normalized data upto 3nf

Q: Consider the following database schema for Players and contracts with different teams. Player (…

A: Question given -  Table schemas are given of two database tables. These tables are already in 1NF.…

Q: Consider the following relations for a database that keeps track of auto sales in a car dealership…

A:

Q: A relation r(A, B, C) had multi-valued dependencies among all its attributes. It was decomposed for…

A: Answer: As we know that the multi-valued dependencies among the attributes are handled by 4NF. So…

Q: Consider a database system for an airline that employs snapshot isolation. Describe a situation in…

A: Introduction: Think about a database for an aircraft where the database system makes use of snapshot…