Interpret the different form of Entity used in the given scenario of ER diagram. Illustrate the different types of relationship used here. Draw the mapping table for each relation.

Q: Direction: Based on the given entities, make an Entity Relationship Diagram (ERD). Put attributes (…

A: Entity-relationship diagram(ER) is used to determine the relationship between two entities in a…

Q: In your group, you will need to create an entity relation (E-R) diagram using the Crow's foot…

A: Given, The answer is given below Note: As Microsoft Visio is paid software(Unavailable freely). so,…

Q: Explain what the Entity-Relationship model is and what its purpose is

A: Entity Relationship model is a simple diagram which depicts the structure of tables and the…

Q: Translate the E/R diagram that you draw in the previous question into a set of relations, clearly…

A: Given Figure :-

Q: How do you map a "Many to Many" relationship when mapping ER Diagram to Schema Select one: O a. Take…

A: How do you map many to many relationship when mapping ER diagram. Many to many relation happens when…

Q: Modify the Er diagram given below and add 5 to 6 more additions to it such as entities attributes…

A: RE DIAGRAM for college management system

Q: How are entity-relationship diagrams used? What kind of symbol is utilized to represent a…

A: How are entity-relationship diagrams used? Ans:  Entity-Relationship Model (ER Modeling) is a…

Q: The foreign key must be in one side table when a relationship is 1:N. At the implementation level,…

A: Defined given statements true or false

Q: Consider the following E-R diagram: E1 RI E2 R4 R2 R5 EA R3 E3 What is the minimum number of…

A: Introduction    Given, An ER diagram . We have to calculate the minimum number of relation required…

Q: Based on the set of 3NF relations derived in (b), draw a complete entity relationship diagram (ERD)…

A: Employee Record ( Name, Emp Number, Address, DOB) Course Attended ( Number, Description, Location,…

Q: What does it mean to be a weak entity? Set a good example.

A: Introduction: Although an entity type should contain a key attribute that uniquely identifies each…

Q: enhanced entity relationship diagram using the diagram below

A: ERD stands for Entity Relationship Diagram. These types of diagrams are also known as ER diagrams…

Q: List and give an example of the three types of binary relationships other than the ones used in this…

A: When an attribute of one entity type refers to another entity type, some relationship existsbetween…

Q: Based on Entity Relationship Diagram (ERD) below; a) Write the correct business rules for all…

A: The given problem is related to database entity relationship diagram where the solution will include…

Q: How is a relationship between entities indicated in an ERD? Give an example using the Crow’s Foot…

A: Relationship Representation in ERD(Entity Relationship Diagram):-   ER diagram or Entity…

Q: Q.Modify the ER diagram given below and add these make corrections if anything is wrong Weak entity…

A: In the given ER diagram The Attribute with underline is the key attribute that is the primary key…

Q: Give an example of how attributes are used in a relationship model, and what the generic term for an…

A: Entities in the ER model contain characteristics that may be single-valued, multi-valued, composite,…

Q: The code below demonstrates an important OOP characteristic. Describe this characteristic, then…

A: Given a piece of code, to determine the OOP characteristic shown.

Q: example

A: Ternary relations:- When three entities are involved and taking part in a relationship then it is…

Q: 3. Figure 2 shows an Entity-Relationship (ER) diagram for a University dining service a) Develop a…

A: MENU( Menu ID, Menu Desciption, Menu Type) EVENT( Event ID, Event Date, Event Location, Event Time)…

Q: ) i). Name and explain the type of relationship the relations in figure 2 depict.  ii). Using…

A: A) There is a foreign key constraint relationship between Student and Room relations

Q: Summarise the ERM's components, and names the entities and their relationship (As given in the…

A: ER Diagram :

Q: The below Entity Relationship Diagram (ERD) is in second normal form. Draw a new ERD in third normal…

A: Below is the ER diagram in third normal form with explanation:

Q: How do you map a "One to Many" relationship when mapping ER Diagram to Schema

A: To map one to many relationships, the primary key on the `one side' of the relationship is added to…

Q: What is Entity relationship modeling produce an entity relationship diagram for the scenerio below;…

A: Entity relationship modelling is a conceptual model which mainly contains three components that are…

Q: Draw an Entity Relationship Diagram of Store Management System(Retail Store Database). Properly…

A: table: customer table - C_ID (primary key) bill table - Bill_ID (primary key) employee table - E_ID…

Q: Create an Entity Relationship Diagram (ERD) using UML notation after studying the business rules…

A:

Q: The below Entity Relationship Diagram (ERD) is in second normal form. Draw a new ERD in third normal…

A: New ERD in third normal form is an given below :

Q: Define the term relationship and give an example other than those used in this book.

A: Definition of relationship: A relationship is any connection between two types of entities. The…

Q: Define Unary Relationship. Give example by using Entity Relationship Diagram

A: Note: we are only allowed to solve one question in one post. I am solving the first on here. To get…

Q: Modify the Er diagram given below and add these Weak entity Identifying relationship Weak…

A: ER Diagram using these  Weak entity Identifying relationship Weak relationship Key attribute…

Q: Review the data model provided in the case study. (1) List all entities and its type

A: Below i have answered:

Q: Make up a scenario from a subject/industry area of your choosing, and invent a single relation that…

A: Given question has asked to make up a scenario and show a single relation that has at least one…

Q: • Each waiter has a date when they started serving. • Each waiter is also assigned many reservations…

A: The given problem is related to designing the database where the system description is provided. The…

Q: What type of Relationship is represented by this ER diagram ?

A: There are four types of relationships and are as follows: One to One One to Many Many to One Many…

Q: Use an appropriate example to explain Entity Relationship Diagram.

A: Entity Relationship Diagram Entity–relationship diagram describes a structure of the database with…

Q: What are entity-relationship diagrams and how are they used? What symbol is used for a relationship?…

A: Explanation: Any real-life object interacting in a business scenario is represented in the form of…

Q: In your group, you will need to create an entity relation (E-R) diagram using the Crow's foot…

A: Answer: 1. Entities:   A representation of a group of items is referred to as an entity. It might be…

Q: If you are reading a flat file, with minimal information regarding business rules and constraints.…

A: Solution:Even though the file contains minimal information about business rules and constraints,…

Q: Give a Relational Model that corresponds to the Entity-Relationship Diagram given below: address M…

A:

Q: Demonstrate your understanding of the Entity-Relationship Model and its function.

A: Introduction: A problem domain's information structure is represented in terms of entities and…

Q: Consider the scenario described by the statement "A customer can make many payments, but each…

A: Explanation: The Scenario “A customer can make many payments, but each payment is made only by one…

Q: When must a many-to-many relationship bemodeled as an associative entity

A: Given: When must a many-to-many relationship be modeled as an associative entity.

Q: Describe data relationships, draw an entityrelationship diagram, define cardinality, and use…

A: Data relationships: A relationship is a situation between two relational database tables where one…

Q: Use ER Assistant to draw your diagram.  Transform the following M-N relationship into an associative…

A: ERD: ERD stands for Entity Relationship Diagram. This is a diagram which is used to show the…

Q: Prepare a Crow’s Foot Entity Relationship Diagram for the application described in the following…

A: Following entities exist for the above relations: Player Division Team Coach League Game The…

Q: draw an E-R diagram that indicates the entity sets and their attributes. Identify and label…

A: An ER diagram is an entity relationship diagram, also known as an ERD, which displays 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.