What is normalization?Another ExampleNameAssignment 1Assignment 2Poety AnalysisReaction PaperPoety AnalysisJeff S mithArticle SummaryNancyJonesArticle SummaryJane ScotArticle SummaryTable is not in first nomal form because:• Assignment field repeating• First and last name in one field• No (guaranteed unique) primary key field

Answer :- Normalization is a database design technique that reduces data redundancy and eliminates…

Answered: What is normalization?

Engineering

Computer Science

What is normalization?

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 9MC

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For the given design, Which of the following is NOT true about the design? Select one: a. It supports modular design. b. The AuthenticateUser sequence diagram can be reused only after a doB message call. c. The AuthenticateUser sequence diagram can be reused only when the authenticate() message is invoked on a B object. d. The DoFoo sequence diagram can be reused in any context where a B object and a C object are involved. e. The doB message must be called after the doA message.
Clayton Elementary School is converting the wish list request form below into online form because of COVID-19. 1. Class Diagram: Class name, attributes, and data type Operations (Methods) that you need to perform 'Fill Wishlist' Relationship between classes. Multiplicity of each relationship Assumptions that you need if any Sequence Diagram: Actor, boundary, and control objects Objects that participate this use case Messages, operations, etc. that indicate a successful filling of the form as illustrated in the form above.
Which of the following symbols represents a many-to-many relationship in an E-R model?a. a straight lineb. a dashed linec. a straight line with a crow’s foot at both endsd. a straight line with a crow’s foot at one end
Based on: Entity-Relationship Diagram with the following requirements: There are Professors (ie users) with the changeable attributes Professor_Name, Field, College, PhD_Date There are Flubs (ie posts) with the unchangeable attributes Content, Purpose, Moment, Inventor (which is the creating Professor) There are Bounces (ie shares) where a Professor can share another Professor's Flub Add ID attributes as necessary Content of Flubs only needs to be a text of fixed length Professors can have/be Colleagues (ie friends/followers) A Flub can get Citations (ie likes) by other Professors Show the Relational Algebra AND Domain Relational Calculus formulas for each. Show a portfolio of the Flubs by a Professor Show a portfolio of all Flubs and Bounces (the Flubs bounced) by all of a Professor's Colleagues
Based on: Entity-Relationship Diagram with the following requirements: There are Professors (ie users) with the changeable attributes Professor_Name, Field, College, PhD_Date There are Flubs (ie posts) with the unchangeable attributes Content, Purpose, Moment, Inventor (which is the creating Professor) There are Bounces (ie shares) where a Professor can share another Professor's Flub Add ID attributes as necessary Content of Flubs only needs to be a text of fixed length Professors can have/be Colleagues (ie friends/followers) A Flub can get Citations (ie likes) by other Professors Create the SQL for a single View called "Flubbergasting" of a Professor which includes all attributes from Entity-Relationship Diagram, as well as how many Flubs, the average number of Bounces the Flubs had, and total Citations across all Flubs by that professor.
Below is my RolePermission Model:@Entity@Getter@Setterpublic class RolePermission {@Id@GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "Id")// @Column(name = "id", nullable = false)private Long id;//@ManyToOne(fetch = FetchType.LAZY,cascade = CascadeType.REMOVE)// @ManyToOne@JoinColumn(name = "roleId")@JsonIgnoreRole role;@ManyToOne(fetch = FetchType.LAZY,cascade = CascadeType.REMOVE)// @ManyToOne@JoinColumn(name = "permissionId")// @JoinColumn(name = "permissionId", referencedColumnName = "permission",// insertable = false,updatable = false)@LazyToOne(LazyToOneOption.NO_PROXY)@JsonIgnorePermission permission;@CreatedDate@CreationTimestamp@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)LocalDateTime createdAt;@LastModifiedDate@UpdateTimestamp@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)LocalDateTime updatedAt;}
Given the following relation that stores details of employees and their projects: ProjectID EmployeeName EmployeeSalary 100-A Salim Housni 2000 100-A Taleb Maashani 1800 100-B Taleb Maashani 1800 200-A Salim Housni 2000 200-B Salim Housni 2000 200-C Salim Housni 1350 200-C Taleb Maashani 1800 200-D Salim Housni 1350 If the functional dependencies are consistent with the above relation, put TRUE. If they are not, put FALSE ProjectID --> EmployeeName (....) ProjectID --> EmployeeSalary (....) ProjectID , EmployeeName -->EmployeeSalary (....) EmployeeName --> EmployeeSalary (....) EmployeeSalary --> ProjectID (....) EmployeeSalary --> EmployeeName , ProjectID (....)
It is possible to have both a primary key and a candidate key for the same attribute.
Need a Rule set, architecture design and access control matrix for below: RBAC Ruleset: So 1 subjects/owner 1) users (subjects), 2) files (objects), 3) roles, ===can be 4 roles user 4) operations. Roles are abstractions like “researcher,” “analyst,” “system_operator,” or “employee.” Operations are abstract tasks like “reporting,” “analysis,” “compiling” or “view”. Here’s a quick partial example: Jerry assigned NOVA_researcher NOVA_researcher does NOVA_reporting NOVA_reporting can rw NOVA/reports/*.txt
What is used to indicate a weak relationship in an ERD in Crow’s Foot notation? Dashed line between entities Double rectangular box Solid line between entities Single rectangular box
How does 5NF differ from 4NF? a.) 5NF has no multivalued dependencies. b.) There is no difference between the two. c.) 5NF is more practical in real-world settings. d.) 5NF does not contain any join dependencies.
Continuing with the Vince's Vinyl scenario from Hands-On Database, create an updated ERD after Normalization ? The diagram could pass the first three levels of normalization. There are a couple of issues, though, that could lead to further normalization: Customers and Sellers can be the same people. This could lead to update anomalies as the same person could have their information in two places. The solution is to create a Person entity that contains all names, phone numbers and email addresses. The person key could represent them in either role in Sale, Request, or Purchase. Another subtle issue relates to the entity Album. If Vince were to remove an album, and it was the only copy of that album, he would lose the album information. Also, there is potential redundancy in Album, since each physical vinyl is treated as an individual item in the table. Multiple copies of the same album would result in multiple entries identical except for purchase date and perhaps condition. To solve…