Use MS Visio to create relational data schemas and data dependency diagrams for all entities (tables). Start out with listing all data attributes in 1NF, then label partial dependencies and potential transitive dependencies. For this Data. A database for payment and bookings for a Virginia Beach hotel.  A guest can check into a hotel. A hotel can have many guests. A hotel can keep a record of a guest’s activities. A record can contain many notes. Possible tables might include: Guests, Notes, Room Type, Charges. Possible Primary keys might include: GuestID, NoteID, RoomID, ChargeCode. Possible attributes might include: CustName, Room#, ChargeType.

Q: Give a definition of a data model and discuss its value in relation to database design.

A: The data model describes the structure of how data components are kept and the relationships between…

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 database schema below for hotels in countries. A country have many hotels, and the same…

A: Lets see the solution.

Q: Q2. Based on the following requirements for a database for ABC international football League (ABC):…

A: The required ER-diagram is given below: - Explanation: - In the given ER-diagram, the first…

Q: Design the database as a logical ERD showing attributes and multiplicities (suggest you use IE…

A: Entity-relationship diagram (ERD) is a graphical representation of a database schema. It shows the…

Q: Where you can apply all the normalization rules to attributes. Furthermore, you also need to explain…

A: Normalization Rules Normalization rules for entity-relationship diagrams are based on (and are…

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

A: According to the information given:- We have to follow the mentioned scenario in order to make the…

Q: Give a definition of a data model and discuss its value in relation to database design.

A: Dear student, the answer is provided below.

Q: What is the difference between the implementation of 1:M unary relationship and M: N unary…

A: GIVEN: What is the difference between the implementation of 1:M unary relationship and M: N unary…

Q: in the thought of programming a structure for the data to fit in. Are we making metaphysical…

A: The question is here to understand whether the relationships created between the data in a database…

Q: COUNTRIES - Read the description below and identify the tables, columns, primary key, foreign keys,…

A: Objective: A database "COUNTRIES" should be created maintaining the following specifications: A…

Q: Give a succinct description of source data automation (SDA), focusing on at least two of its…

A: Source Data Automation is the process of obtaining digital values at the source and storing them on…

Q: Create an airline database. Customers and their bookings must be kept in the database, as well as…

A: Answer

Q: Consider the following E/R diagram with isa relationships, in which every node represents an entity…

A: Here I am explaining this with an example. For this example I filled up the blank entities with some…

Q: Develop an EER model for the following situation using EER notation, as specified by your…

A: Here is the detailed explanation of ER diagram

Q: Give a definition of a data model and discuss its value in relation to database design.

A: The response is given below here: The structure of how data items are kept is referred to as the…

Q: 1. Your task is to design a 'Company' database capable of storing information about EM- PLOYEE(s),…

A: solution

Q: In the context of data models, which of the following models emphasize a global view of data that is…

A: A data model is a conceptual representation of data that outlines its organization, connections,…

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: Give a succinct description of source data automation (SDA), focusing on at least two of its…

A: Source Data Automation (SDA): Source Data Automation (SDA) is the process of obtaining digital…

Q: It's a Database Administration advanced data modeling question. Given the following business…

A: Crows Foot ERD of Two-Bit Drilling Company • The situation is that company holds the information of…

Q: Create a database schema for a dental clinic. The dental clinic has five relations, Patients,…

A: The database schema describes how data is arranged in a relational database, including logical…

Q: 5. Database design often involves decisions about the storage of attributes. For example a Telephone…

A: Database design is a crucial aspect of information management, software development, and data-driven…

Q: Take a look at the database structure for cities in nations below. There are numerous cities in a…

A: A city can have any names from as the variable type is string

Q: Should the cardinality between entities be translated/read from both ends of the notation when…

A: Cardinality: Cardinality refers to the maximum or lowest number of components that may be used on…

Q: Is it ever a good idea to use composite primary keys? What are your thoughts on using composite…

A: Composite primary keys are a special type of primary key.

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

A: In part 1. We can create a database as the following : employee(id, name, address) employeeMap(id,…

Q: • We want to create database for a bank in which we store: • Customers (id, name, city) • Accounts…

A: In this question we have to design an ER diagram for the database design of the Bank Let's create…

Q: Consider the following business rule: An employee can manage multiple customers. A customer can be…

A: Option a is wrong as the relationship between the Employee and Customer is "manages". Option b is…

Q: Give a succinct description of source data automation (SDA), focusing on at least two of its…

A:

Q: Write a trigger to compute the total_salary in the event of inserting one or more new employee…

A: CREATE TRIGGER tr_insert_employee_total_salary AFTER INSERT ON employee FOR EACH ROW BEGIN UPDATE…

Q: What are surrogate keys, and why are they used in data modeling?

A: Surrogate keys serve as identifiers, for records in a database table separate from any occurring or…

Q: A tutorial school is using a database to manage information about teachers, courses, and students.…

A: Draw the ER diagram based on the following specification.   A tutorial school is using a database…

Q: A student basketball club wants to keep track of their players, games, and teams for the season. The…

A: ER diagram stands for Entity relationship diagram. It helps to explain logical structure of the…

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: just answer true/false. a] There are three main components of ER model which are an entity, an…

A: Defined the given statements true or false

Q: Consider the unnormalized data presented in the STUDENT table below: a) Identify the data…

A: According guideless we are supposed to answer only first 3-sub part at a time .please repost the…

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.