Based on the given ERD, identify all the business rules and explain them. Also, identify all primary keys and foreign keys with in the entities and explain the roles that they are playing in the ERD design.
Q: Q4 (Entity-Relationship (ER))
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Q: Give 5 examples on each business rules IN ENTITY RELATIONSHIP DIAGRAM
A: Given: Give 5 examples on each business rules IN ENTITY RELATIONSHIP DIAGRAM
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- create an Entity Relationship Diagram using the following Entities and their respective attritubes for an online programming competition registration for both leaners and university students. 1. Host it's attributes (host Id, hostFirstName,hostLastName, hostTelNum,hostEmail,hostPassword) 2. Student(StudentId, StudentfirstName, Student Email, StudentPassword, InstitutionName) 3. Learners(leaner Id, leanerFirstName, leanerLastName, leanerPassword, SchoolName) 4. Competition(compId, comName, compDate,comTime, compRules, compRequirements) 5. Qualified Student/Leaner (id, firstName, compId,email)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 ColleaguesBased 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.
- What kind of Entity instance would it be? REGISTRATION, COURSE, AND STUDENT A. Ali, Mohammed, and Khalid; B. Stud ID and Stud Name; C. STUDENT, COURSE, AND REGISTRATION Ali, Mohammed, Khalid; Stud ID; Stud Name; Student; Course d. Offers, records, and consists ofBased on the following Entity-Relationship Diagram with the following requirements: There are Professors (ie users) with the changeable attributes Professor_Name, Field, College, PhD_DateThere 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 FlubAdd ID attributes as necessaryContent of Flubs only needs to be a text of fixed lengthProfessors can have/be Colleagues (ie friends/followers)A Flub can get Citations (ie likes) by other Professors--------- Create the Relational Model for the Flubber database based upon your ER Diagram above, meeting all the same requirements. Include all necessary Primary Key and Foreign Key constraints. This should be syntactically correct to test in a MySQL database.Based on the following 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 Write the necessary SQL Queries for the following functions. Adding a new Professor Changing a specific Professor's Professor_Name Removing a Flub by ID Show a portfolio of the Flubs by a Professor in reverse chronological order Show how many Bounces and how many Citations a Flub of particular ID has Show a portfolio of all Flubs and Bounces (the Flubs bounced) by all of a Professor's…
- Can you draw Entity Relationship (ER) diagram based on the text. (Please use the draw.io web site for drawing.) Entity: HoneynetCentralServer Attributes: server_id (Primary Key), cronjob_interval Relationships: one-to-many with Honeypot one-to-one with LogProcessor Entity: Honeypot Attributes: honeypot_id (Primary Key), ip_address, ssh_credentials, server_id (Foreign Key) Relationships: many-to-one with HoneynetCentralServer one-to-many with LogEntry Entity: LogEntry Attributes: log_entry_id (Primary Key), timestamp, message, action_type, attack_level, honeypot_id (Foreign Key) Relationships: many-to-one with Honeypot Entity: LogProcessor Attributes: processor_id (Primary Key), rule_filters, server_id (Foreign Key) Relationships: one-to-one with HoneynetCentralServer Entity: MongoDBAtlasDatabase Attributes: database_id (Primary Key), connection_string Relationships: one-to-many with StoredLogEntry Entity: StoredLogEntry Attributes: stored_log_entry_id (Primary Key), log_entry_id…Entity Framework (EF) is being used to build an ASP.NET MVC application that will be hosted on Microsoft Azure. You see that you need a mechanism to define the metadata reference when you construct the entity connection programmatically. What's the best kind of class to use? a string representing the connection string between the provider and client 2-Builder of EntityConnectionString 3- SqlconnectionStringBuilder. string-building constructorsWhich of the following is a key part of conceptual design in an entity relationship model? This model resolves the many-to-many relationships to multiple one-to-many relationships. This model adds all of the attributes for each entity. This model converts attributes into columns. This model does not depend on the database management software or the hardware used to implement the model.
- An entity in X is connected numerous entity in Y, however an entity in Y is associated to only one entity in X. What it the type of relationship? Select one: a. One to many b. One to One c. None d. Many to ManyI need an ER diagram for the following information For Hotel: HotelID (unique) and ANoOfRooms (number of rooms in the hotel) For Hotel: HotelID (unique) and ANoOfFloors (number of floors in the hotel) For each Room: RNO (partially unique, unique in the hotel) and ANoOfBeds (number of beds in the room) For each customer: CID (unique), CName (unique), For each manager: MID (unique), MFullName (composed of MFName and MLName), MBonus (not every manager has a bonus), MSalary, multiple MPhones For each employee: EID (unique), EName Each hotel has one or more rooms Each room is located on exactly one floor Each room is cleaned by one or two employees Each employee cleans 1-3 floors Each employee cleans 6-15 rooms Each customer has one or many rooms Each customer has booked one or mamy rooms Each room is booked by a customer or no one Each floor has one or many rooms Each manager resides in exactly one room Each manager resides on exactly one floor Each hotel either has one manager residing…This question is about guidewire Which three statements are true about creating new custom subtypes? (Choose three) (Choose all correct answers) Entities marked as final cannot have subtypes. A custom subtype entity must be final. Only out-of-the-box entities can be subtyped. A custom subtype entity cannot have an ETX file. A custom subtype entity is defined in a TTI file. A custom subtype entity is defined in an ETI file.