You are required to draw a Data Flow Diagram of above scenario
Q: tionship (ER) diagrams so important for database des
A: Introduction: An entity relationship diagram depicts how these entities are related to one another.…
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: Why is ER modelling important in the design of a database system, and how did you utilise it to…
A: Introduction: Here we are required to explain why is ER modelling important in the design of…
Q: The project team at University of Kentucky is moving forward with the new Student Grading System.…
A: Actually, DFD stands for Data Flow Diagram.
Q: please answer all the questions. much thanks Question Al The relational model below (in Figure 1)…
A: Answer
Q: Direct connections between external entities and the database are not permitted. This is one of the…
A: A Data Flow Diagram (DFD) depicts the flow of data across a cycle or framework. DFDs help you…
Q: Consider an actual application of a database system of interest. Define the requirements of the…
A: We wish to develop a database management system that gives users varying degrees of access to its…
Q: EPCode EPName FundSource Description EXTENSION_PR OGRAM ActCode Venue ActName Budget Date Lname…
A: The relational schema for the given ERD is given below. Since Collaborators is a multivalued…
Q: Why the use of ER modelling is an essential part in the design of a database solution, and how you…
A: ER stands for Entity Relationship diagram and it is an example of conceptual model which is also…
Q: Consider the E-R diagram for a university database as shown in Figure 1. Detect the strong…
A: Strong entity: It contains enough attributes to uniquely identify all its entities. The strong…
Q: The project team at University of Kentucky is moving forward with the new Student Grading System.…
A: Actually, given information is: Entity Data flow from the Entity Data flow to the Entity…
Q: Construct the Entity Relationship model for the following set of requirements for conference review…
A: ER Diagram: ER diagram is the non-technical design approach operates on conceptual level, focused on…
Q: he South African Sports Group (SASG) has just started going digital for all their information needs…
A: It is defined as the structure of a database with the help of a diagram, which is known as Entity…
Q: Draw an ER diagram for the given scenario; Suppose that you are designing a schema to record…
A: ER diagram: It depicts various relations and their association in relational databases. It also…
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: Consider a MOVIE database in which data is recorded about the movie industry. The data requirements…
A: Answer : I attached an ER diagram image please have a look once.
Q: Using Laravel 8, make a scenario that college, student and department have relationship, define…
A: SUMMARY: - hence we discussed all the points.
Q: Data/Database Management system . Consider the ER diagram shown below. Supply the relationship…
A: An entity relationship diagram (ERD), otherwise called a substance relationship model, is a…
Q: Consider a database system for a Wholesale Management System. The data requirements are summarized…
A: ER Diagram: ER diagram consists of entities with their corresponding attributes and relationships…
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: Which of the studied data structures in this course would be the most appropriate choice for the…
A: A. )From the problem mentioned finding the id in the database the best data structure for this…
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: Relationship Model for the hospital’s data model (Figure 1) in form of a diagram in Chen notation.…
A: Q. You have been asked to design part of a database for a hospital. Thehospital managers provided…
Q: Suppose, for a Salat management system, you have the following information: Person Name, Gender…
A: 1. Updation/deletion anomalies If the user performing the update in a database table, When…
Q: During COVID-19 pandemic, it is not safe for the people to go out frequently for their daily needs.…
A: ERD
Q: Create a workflow diagram (WFD) to show the activities from data generation, to data capture, to…
A: here we have given a work flow diagram for showing the activities for hotpot Korean restaurant. You…
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: Given the following Entity-Relationship diagram Address wirkwing 9 na pr mam quran BASED IN (LN)…
A: It helps to convert conceptual data model into a set of standard relationships Steps: Represent…
Q: A college wants you to help design a star schema to record grades for courses completed by students.…
A: Here we make simple star schema : Answer 1:…
Q: Database Systems Construct the relational model of the following scenario in soft . System…
A: The following images shows the answer..
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: Justify why we need to apply a dimensional model in designing a data warehouse database.
A: Data warehouse: Data warehouse is a repository of information or data that can be analyzed to make…
Q: Design and draw an ER diagram that captures the information about the university. Consider the…
A:
Q: For the ETL Strategy Implementation kindly explain the process of System DataBase to DataWarehouse…
A:
Q: A dimensional model is employed in the construction of a data warehouse, but what precisely does it…
A: GIVEN: A dimensional model is employed in the construction of a data warehouse, but what precisely…
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: 02: Construct an E-R or UML diagram for the following SALES COMPANY database which has network of…
A: ER diagram Entities: Customer(cusNo,cusname,SPNO,HQcity) Employee(Eno,Custno,Empname,title)…
Q: 2: Construct an E-R or UML diagram for the following SALES COMPANY database which has network of
A: Actually, E-R is Entity Relation ship diagram
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: 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: is used when Implementing data from a Source Database to a Data Warehouse? Probably better with a…
A: Extracting to file is frequently used to separate responsibilities, with the source system owner…
Q: n. If an attribute is not readily apparent from the user information, then make one up that makes…
A: ERD using Cows foot notation No of entities: 1. Patient entity2. Ward entity3. Doctor entity4.…
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.
Q: Question 5: (Question that needs to be done) Assuming the current semester is semester 1 2020:…
A: SQL query to write : To retrieve the list subjects and their names that each student is enrolled in…
Q: Which of the studied data structures in this course would be the most appropriate choice for the…
A: a) We will use Array because of Random access in Array elements. b) Array since they are best when…
Q: a. characteristic and benefit of database is discussed in the scenario. b. and are the methods…
A: Data Base Recovery Database recovery is the characteristic and the benefit of database that has been…
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…
Given the following scenario:
In campus management system, one of the work flows has following description;
A Student submits admission form to apply for admission in university. The form is evaluated and approved forms are shortlisted. Shortlisted students are invited for interview. After interview of students, selected forms are stored in
Step by step
Solved in 2 steps with 1 images
- Direct connections between external entities and the database are not permitted under any circumstances. It should be kept in mind as one of the data flow diagram design concepts to consider. What do you think the repercussions of this suggestion will be?1. Develop a database procedure that takes "student_id" as an input parameter. The procedure should return the GENDER of the student for the given studentId including the output status message and status code for successful completion. 2. Develop a database function that takes category as an input parameter. The function should return how many categories are present.3. Develop a database function that takes eventId as an input parameter. For the given eventId, find out SUM of score for all students for this given eventIdYour task for this assignment is to complete a database design for the given case studies. Model the system described in the case study and draw a Physical Data Model using MySQL Workbench. Your diagram must conform to the notation used in this subject (object notation = ‘Workbench Simplified’, relationships notation = ‘Crows Foot’, show data types). If you include sub-types, place them inside a Layer with a note explaining their relationship to the super-type.
- Take a database, having FDs as: DOB->Age; Age->Eligibility; Name->RollNo; RollNo->Name; CourseNo->CourseName; CourseNo->Teacher; (RollNo, CourseName)->Marks. The relation (RollNo, Name, DOB, Age) is in which Normal Form?This test concerns database design, including both the logical design via the Entity Relationship (E - R) model and the physical model via relational database tables. The subject of the model is the registration of students in college classes, and there may be multiple classes for each course. The college model should include: courses (for example the CBU catalog), the current classes (or course-sections) given for courses (for example the CBU schedule for a term), the faculty qualified to teach courses, the scheduling of classes (to buildings/rooms, times, and faculty members), the assignment of faculty to students for advising (1 advisor per student), and the scheduling of students to classes.For unique identifiers you can use the following abbreviations:SID Student IDCID Course ID (ie MIS 471, …)SEC Course Section (ie A, B, C, …)BID Building ID (ie BU, BH, K, …)RID Room NumberFID Faculty IDTID Timeslot ID (ie TR 9:30, MWF 8am, …)CRN Course Record Number (an auto key for each…The objective is to create a system that allows you to completely manage the functions of thecompany through an optimal design of the data model, to be adapted to a system connected to aSQL database. StatementThe pharmacy chain “Recetas Rayos X” needs a system to manage information about its operations, such as the purchase, sale and administration of medications, other patients and who prescribed them.a medicine. The information that must be stored is the following:1. Patients are identified by the RUT and the name, surname, date of birth, email,address, several telephone numbers and pension system.2. There are various health provisions, both social and private, and they are correctly codified.3. Doctors are identified by the RUT. For each doctor you have to store the first name, last name,date of birth, specialties and years of practice.4. There are various specialties which are adequately codified.5. Each pharmaceutical company is identified by a code, the name and a telephone…
- The objective is to create a system that allows you to completely manage the functions of thecompany through an optimal design of the data model, to be adapted to a system connected to aSQL database. StatementThe pharmacy chain “Recetas Rayos X” needs a system to manage information about its operations, such as the purchase, sale and administration of medications, other patients and who prescribed them.a medicine. The information that must be stored is the following:1. Patients are identified by the RUT and the name, surname, date of birth, email,address, several telephone numbers and pension system.2. There are various health provisions, both social and private, and they are correctly codified.3. Doctors are identified by the RUT. For each doctor you have to store the first name, last name,date of birth, specialties and years of practice.4. There are various specialties which are adequately codified.5. Each pharmaceutical company is identified by a code, the name and a telephone…Consider the following information about a university database: • Professors have an SSN, a name, an age, a rank, and a research specialty. • Projects have a project number, a sponsor name, a starting date, an ending date, and a budget. • Graduate students have SSN, a name, an age, and a degree program (e.g., M.S. or Ph.D.). • Each project is managed by one professor (known as the project’s principal investigator). • Each project is worked on by one or more professors (known as the project’s coinvestigators). • Professors can manage and/or work on multiple projects. • Each project is worked on by one or more graduate students (known as the project’s research assistants). • When graduate students work on a project, a professor must supervise their work on the project. Graduate students can work on multiple projects, in which case they will have a (potentially different) supervisor for each one. • Departments have a department number, a department name, and a main office. • Departments…The readers and writers problem can be formulated in several ways with regard to which category of processes can be started when. Carefully describe three different variations of the problem, each one favouring (or not favouring) some category of processes. For each variation, specify what happens when a reader or a writer becomes ready to access the database, and what happens when a process is finished.
- Consider a database used to record the marks that students get in different exams ofdifferent course offerings (sections). Construct an E-R diagram that models exams as entities, anduses a ternary relationship, for the databaseWhat are the benefits of using a transaction to group database operations together that need to either all complete or be rolled back so none of them complete? Here is an example of when a transaction should definitely be used to be helpful: When any bank / financial institution processes a transfer of money from one account to another account, the operations involved are always (1) to subtract a given amount of money from the source account and (2) add that same amount of money to the destination account. They have to be sure the software doing the transfer groups the above 2 required database operations in a transaction to ensure that if there is any system error/problem during these operations there is no way that money could be accidentally subtracted from an account but not added to the account it is supposed to be transferring to or customers will be very upset at the loss of money!Suppose that you have been tasked with cataloging the information found in books. Either more books need to be added, or the ones now stacked on one side of the shelf need to be rotated. Find the optimal data structure and explain why it works here. Provide a flexible method of stocking the bookcase. What happens, meanwhile, if fresh information must be added to a database but there isn't enough space for it?