Consider the following scenario: two students are attempting to enrol for a course in which there is only one opening. There is one available seat. What component of a database system prevents both students from completing their assignments? from being assigned to the final available seat?

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: Let's say two students want to sign up for the same course, but there is only room for one more.…

A: Answer: in database we have concept of locks where when we try to update a record we need to acquire…

Q: Defineanomaly? How probable is it to find three abnormalities in a database? Exists a strategy for…

A: Database: A database anomaly is a fault in a database that usually emerges as a result of poor…

Q: As depicted in the airline picture, a single seat can be assigned to two people if the two-step…

A: In point of fact, a database is what is used in order to store the data and information. The…

Q: If the state of a database no longer reflects a real life state the database is supposed to capture,…

A: Database: The database is used to store a set of information. The information in the database is…

Q: It is possible to distinguish two different services provided by database logs. What or who are they…

A: Introduction: Every database management system requires a database log, also known as a transaction…

Q: For each item below, specify whether the statement is true (T) or false (F).              Each…

A: (A)-Each Database Management System (DBMS) is based on a Data Model. Answer-(A) False   (B) Database…

Q: Consider a main-memory database system recovering from a system crash. Explain the relative merits…

A: Find Your Answer Below

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

A: Considering a database for an airline where the database system uses snapshot isolation.

Q: Consider the relational database of Figure 1. What are the appropriate primary keys? employee…

A: Given query is  employee (person_name, street, city) works (person_name, company_name, salary)…

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: Give an example of a database management system for each of the systems listed above in your…

A: A computerized data-keeping system is all that a database management system (or DBMS) really is,…

Q: In a distributed database system, experiment with all of the numerous ways that individuals could…

A: Introduction A distributed database is made up of many databases that are spread out throughout the…

Q: Assume two students are attempting to register for a course in which only one spot is available.…

A: Given: There are two students at the college who need to enroll for the course.But clearly, there is…

Q: A database is in 3rd NF if A. It is 2ndNF and in 1stNF B. It is in 2ndNF and all non-key fields…

A: Given:     A database is in 3rd NF if A. It is 2ndNF and in 1stNF B. It is in 2ndNF and all non-key…

Q: Imagine there are two students who are interested in enrolling in the same class, but there is only…

A: Database Systems: Software that caters to the collecting of electronic and digital records in order…

Q: Consider a main-memory database system recovering from a system crash. Explain the relative merits…

A: Find Your Answer Below

Q: Consider the following information about a university database: • Each project is managed by one…

A: Actually, database is a used to stores the data. ERD for given description Entities - Project,…

Q: Consider the relational database below, where the primary keys are underlined. employee…

A: According to answering policy we can answer only first 3 parts . For remaining parts please resubmit…

Q: Consider the following information about a university database:   Each project is managed by one…

A: ER diagram for part 1; Each project is managed by one professor. And each project is worked on by…

Q: Let's say two students want to sign up for the same course, but there is only room for one more.…

A: Start: The college has two students that need to enroll for the course. However, there is just one…

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 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: Assume that two students are attempting to enroll in a course for which only one seat is available.…

A: Database Systems, also known as DBMS, is software that collects electronic and digital records to…

Q: Consider a database system for a bank that employs snapshot isolation. Describe a specific situation…

A: A specific suitable in  which a non- serializable execution will be causing a huge problem for the…

Q: Consider the following information about a university database:   Each project is managed by one…

A: Note :- In this much of time and with our policy I can do only this much part of question. So,…

Q: Suppose you are asked to design a club database system based on the following  information. Each…

A: Entity relationship (E-R) diagram consists of three major components that are: Entities, Attributes…

Q: relational database

A: Given :- In the above question, a relational database schema along with the primary key is mention…

Q: Consider a database system for a bank that employs snapshot isolation. Describe a specific situation…

A: Database: An database is a collection of information that is stored in a database. The data is…

Q: Assume two students wish to enrol in the same course, but there is only space for one additional.…

A: Intro in the database, we have a concept of locks where when we try to update a record we need to…

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

A: Given: Consider a database system for an airline that employs snapshot isolation. Describe a…

Q: Consider a main-memory database system recovering from a system crash. Explain the relative merits…

A: Main memory database system A main memory database system is a DBMS that principally depends on…

Q: Professors have an SSN, a name, an age, a rank, and a research specialty. Projects have a project…

A: Entities - Project, Professor, Graduate student, Department and Advisor weak entites - Advisor as it…

Q: Two students are registering for the same course, but one place is available. Is it possible for…

A: Given: There are two students currently enrolled at the institution who have yet to sign up for the…

Q: Consider a GRADE_BOOK database in which instructors within an academic department record points…

A: the solution is an given below :

Q: Consider a database containing personnel information, including names, addresses, and salaries of…

A: First step is to built the database schema using the following query- CREATE SCHEMA `organization`…

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

A: Below is the ER Diagram based on the information given in the question about the university.

Q: Consider the following database schema for student game, where each team is led by a student of the…

A: The primary key constraint uniquely identifies each record in a table. A foreign key is a field or a…

Q: Consider the following database schema for student game, where each team is led by a student of the…

A: Here there are given tables in schema based on that we have to find primary keys and foreign keys in…

Q: In a hypothetical scenario, you have been entrusted with designing and presenting a training session…

A: Introduction: Begin your session by giving a quick review of the major aspects of the training…

Q: er the statement is true (T) or false (F).     __    Each Database Management System (DBMS) is…

A: 1.  Since Every collection of data handle by either file system or Database Management System (DBMS)…

Q: Can an error in a database system be considered more severe than one that happens elsewhere?

A: Introduction: Minor database mistakes may be helpful to an attacker, letting them know exactly what…

Q: mistake occurs in the database system, is it more serious than an error that

A: Here have to determine about error in database system.

Q: What is a stable database state, and how do you get one? There is no assurance that the database…

A: dependable database It is specified for those that would include all data integrity restrictions,…

Q: Consider a case in which your database system has failed. Distinguish between the write-through and…

A: Database: This is where data is stored; significant data requires security, failure recovery, and…

Q: Suppose you are given the following requirement for a simple database for the employee management…

A: Consider the ER diagram for the company database. The employee may work in up to two departments or…

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

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

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.