Assume that you have to design a databaseto manage books issued by your universitylibrary. Attributes for a book include bookidentification number, book title, author,ISBN, publisher, edition, and stock. Identifythe primary key for this entity. What attributes would be associated with other entitiesand used as foreign keys?

Q: Which ones are super keys for course? (a) course id (b) course id, title (c) course id, title,…

A: The attributes “course_id” and “title” can be used to identify the rows of “course” table uniquely.…

Q: Create an E-R model for the following scenario. Show entity names, primary keys, attributes for each…

A: We need to create ER diagram for above case studies See below step for diagram.

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: A relational database is a type of database that keep data and access points that are related to…

Q: Draw a customer-input screen for a utility company. What information should be captured? In what…

A: Solution ::   Some involve advances in basic hidden (under) display and interface technologies…

Q: How should data about customer contact details and data about their orders be stored in a database?…

A: Here customer is an entity since it has its own attribute.  Now order can be considered as one more…

Q: What are the discrepancies with this database?  The student administration database has the same ID…

A: The above question is used below

Q: Describe an entity, an entity type, and an entity set in a database management system?

A: Entity: The entity is an object, place, or thing which has its independent existence in the real…

Q: Consider the E-R diagram for a university database as shown in Figure 1. What is NOT true about…

A: Each instructor must have to be associated with atleast one associated department. Hence, correct…

Q: Assume that the following figure is a part of Database relation in University Information…

A: Introduction:- The given figure shows the database schema with 5 columns and their respective keys…

Q: An audit record of takes relation changes may be desired. A hostile database administrator (or…

A: Introduction: The audit trail's fundamental tenet is to monitor (or track) the usage and…

Q: Map entities, attributes and relations in Oracle is represented by___________ a) Conceptual Schema…

A:

Q: What are the benefits of using a transaction to group database operations together that need to…

A: Dear Student, The major benefits of using a transaction to group database operations together that…

Q: ER-diagrams are high-level design of the Database. The given ER-diagram describes the Dentist…

A: Weak entities are represented with double rectangular box in the ER Diagram      office, supplier,…

Q: Student(studentNumber, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber,…

A: The relational algebra for the given query is as follows,

Q: ID library_item title N publishes magazines journal conference_proceeding book publisher date_of…

A: Primary key attributes- magazines- date of publish, date, id journal-volume, number, id book -…

Q: Map the database schema shown in the following figure into a relational database schema. grade…

A: Actually, A database is an organized collection of data, so that it can be easily accessed and…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: The answer has given below :

Q: Consider the following information about a university database:

A: The most important step for drawing an ERD diagram is to identify the entities in the database. The…

Q: Assume that two students are trying to register for a course in which there is only one open seat.…

A: Given:   There are two students in the college who need to register for the course. But obviously,…

Q: A patient is identified by patient id, and admission date. A patient must be either an Emergency…

A: There are following Entities with attributes in the diagram: Patient PatientID Admission Date…

Q: Write the proper sequence of activities for the design of a video rental database. (The initial ERD…

A: Given: Write the proper sequence of activities for the design of a video rental database. (The…

Q: Consider the following information about a university database: ▪ Professors have an SSN, a name, an…

A: The answer is given in the below step

Q: What

A: Primary key In the diagram, the primary key for section is sec_id. A primary key is a key in…

Q: A) Let suppose if you are a database designer, and if you were designing a Web-based System to make…

A: So, for a coffee shop web based platform, We can have the below few entities and relationship…

Q: the relationship between a table of Movies and a table of ActorsActresses and how might it be…

A: the solution is an given below ;

Q: Exercise 2.3 Consider the following information about a university database: Professors have an SSN,…

A: Daigramitically shown

Q: What does it mean when a relationship is well-structured? In logical database architecture, why…

A: Introduction: A database is a logically organised collection of structured data kept electronically…

Q: A database table is in 3rd normal form if A It is in 2d normal form (2NF) and in 1" normal form(INF)…

A: Actually, database is a used to stores the data/information.

Q: In the refational model, the database snapshot is also called Select one a KUrent set of entity…

A: The current set of entities is also called a database snapshot.

Q: Consider the following normalized relations from a database in a large retail chain What…

A: Denormalisation is process related to the database. The primary requirement to do denormalisation is…

Q: Explain what normal form the relation is in. b) Apply normalization until the 3rd State reasons…

A: A)  From the given functional dependency, primary key for the given relation is (Title, Author)  The…

Q: Indicate the changes you need to make to the design of the BITS database to support the following…

A: the answer is given below:-

Q: Consider the E-R diagram for a university database as shown in Figure 1. What is NOT true about…

A: Explanation: From the E-R diagram, one can identify that instructor and student are related to each…

Q: A hospital consists of various specialized wards where each ward has its unique ID, name and…

A: Question given:  Entity - Relationship Diagram for Hospital Management System Entity - Patient,…

Q: A database designer applied a process of logical design, and he/she transformed the conceptual…

A: Functional dependency is the relationship between properties. That is when one property defines…

Q: Consider the E-R diagram for a university database as shown in Figure 1. What is true about grade?…

A: “grade” represents an entity associated with the relationship “takes” in the given…

Q: You are responsible to help design this database for the hospital. a) What relationship (one-to-one,…

A: Answer a)  One to many relationship exists between NURSE and PATIENT. This is because one nurse…

Q: According to what you understand, what is the relationship between Functional Dependency and…

A: 1.The relationship between Functional Dependency and Normalization 2. Partial dependency and…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: Actually, database is a used to stores the data.

Q: We would like to design a database to maintain information about COURSES in a Faculty. Each COURSE…

A: A unary(recursive) Relationship :- when there is one entity set participating in a relationship and…

Q: Transform the ERD below to a database design. Identify the primary keys and foreign keys. Answer…

A: Solution ::    Business rules refer to types of constraints that are present among different…

Q: create a table for the class entity in an ER diagram of a school system. Show the composite key in…

A: In the School system. there are many entities like Admin Teacher Student Subject Division Class…

Q: Suppose that the initial conceptual design of the Car Rental database consisted  of just a single…

A: The question has been answered in step2

Q: A) Let suppose if you are a database designer, and if you were designing a Web-based System to make…

A: DBMS architecture: There are three levels in DBMS architecture: External level/view level -…

Q: Read the scenario carefully You have to propose and optimal database design in RDBMS for a super…

A: Solution : 1.Entities: Products table to store the information related to products. Customer table…

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.