Question Write your Answer 1 Simple Attributes (any 2)   2 Composite Attribute   3 Multivalued Attribute   4 Key Attributes (any 2)   5 Relationship attributes   6 Relationship is  (1-to-1/ 1-to-many/many-to-many)   7 Participation of BOOK is (Optional/Mandatory)   8 Participation of SUPPLIER   is (Optional/Mandatory)

Q: e. degree; cardinality f. required attribute; optional attribute g. composite attribute; multivalued…

A: Introduction: A database is an organized collection of data stored and accessed electronically from…

Q: How does one non-key attribute relate to the main key, as determined by another non-key…

A: Functional dependence is the relationship between two properties. P and Q are relational qualities.…

Q: The cardinality ratio depends on the real-world meaning of the entity types involved and is defined…

A: Cardinality ratio in database design refers to the relationship between entities, indicating how…

Q: a. What characteristics do tables that conform to the concept of well-informed relations have? b.…

A: Actually all this three concept are related to database.

Q: Draw a relational model diagram with the following:  1. Patient Entity: RUT (Primary Key): Integer…

A: Relational Model Diagram: It is a diagram that represents the relationship along the entity in the…

Q: Regards to the diagram below (figure 4.12), answer the following questions using the multiple-choice…

A: The answers for the following question can be derived from the diagram given. How is of_type…

Q: What are the implications of choosing a composite primary key versus a single attribute primary key?

A: When designing a database, the selection of a primary key is a critical decision that can impact…

Q: 1. Total participation is where each entity participates in at least one relationship in the…

A: 1- True, Each entity in the entity set is involved in at least one relationship in a relationship…

Q: a. Draw ER- notation for the given elements of ER-Model. 1. Entities a. Strong Entity b. Weak Entity…

A: Strong Entity: Weak Entity: Associate Entry:

Q: You are required to draw a complete Crow's Foot ERD that includes the following entity relationship…

A:

Q: For each of the below relationships, provide an explanation of what it is and a relevant example.…

A: One - to - many relationship One - to-many is a relationship cardinality in database entities. In…

Q: Hotels Rooms Hotel ID Room Number Zipcode Room Type Reservation City Rates Reservation Number State…

A: The relationship between Hotels and Rooms is 1:many(mandatory participation) The relationship…

Q: If a student studies more than one major, the "Major" attribute in the "Student" entity is called: *…

A: - We need to choose the correct out of the given.

Q: 'What's an unnormalized relationship? Is it a relationship according to the term relation…

A: Unnormalized relationship

Q: A prospective key is an attribute that is part of a composite primary key.

A: One primary key is a composite one.   The primary key in database management systems consists of two…

Q: A prospective key is an attribute included in a composite primary key.

A: In the realm of database design, keys play a vital role in establishing relationships and ensuring…

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: Which of the following is the term for whether or not an instance of one entity class must…

A: Ordinality refers to the sequence or order in which instances of one entity are associated with…

Q: How can we define relation? Identify the characteristics that make up a relation.

A: The table in the relational database or the relationships created between the same tables using…

Q: Create a logical data model documented with an ERD using the crow’s foot format. Be sure that each…

A: Answer: The below is the answer: ER diagram:

Q: Complete Each Entity's relationship. ex) A CUSTOMER makes  many ORDER And if ther is any errors or…

A: The following relations exists in the given Entity Relation Diagram: A CUSTOMER makes many ORDER. A…

Q: Provide an example of what a Key Attribute is.

A: A key is either a piece of information or a value that is used to uniquely identify a record in a…

Q: Contrast among the following; Primary key; Composite key Relation; Relationship

A: Data Base Management System: Data Base Management System also abbreviated as DBMS is a software that…

Q: which relationship or association is depicited in the following entity relationship (ER) diagram?…

A: The question seems to be about an Entity-Relationship (ER) diagram that involves three entities:…

Q: 2-3. Contrast the following terms: a. stored attribute; derived attribute b. minimum cardinality;…

A: To contrast something means to compare and examine the differences between two or more things. It is…

Q: What does the term "relationship" mean? What are the qualities of a relation defined as?

A: A relation is a table with two dimensions. It includes the quantity of columns and rows (tuples)…

Q: How does one non-key attribute relate to the main key, as determined by another non-key…

A: Functional dependence is the relationship between two properties. P and Q are relational qualities.…

Q: Interpret the different form of Entity used in the given scenario of ER diagram. Illustrate the…

A: Strong entity Account Region Item creep Weak Entity Character Item Instantiation creep…

Q: Explain the terms: Entity Attribute Types of relationship Cardinality  Optionality. I NEED…

A: Entity: - Any existing real word object is an entity in the Database. Each entity has attributes,…

Q: Staff_code CountryCode Staff_name COUNTRY STAFF belongs Degree Country_name Specialization Continent…

A: Sl.no Question Answer 1 Simple Attribute CountryCode, StafCode, StaffName, Specialization,…

Q: The "Annual_Sal" attribute in the "BOOK" Entity type is considered as:

A: ER diagram is also called as the Entity Relationship diagram. In the above ER diagram BOOK is the…

Q: I need answer within 20 minutes ple

A: Q1/ Draw ER diagram representing entity sets and relationship set described below, also determine…

Q: Translate this ER diagram into a relational schema, Choose appropriate data types for each attribute…

A: Explanation:- Primary Key: t-name, p-name and id NOT NULL: id  t-name, and p-name

Q: Examine the following and draw parallels: Concentration vs breadth Case of Entity;Class of Entity

A: Generalizаtiоn: The process of extracting common properties from a group of entities and then…

Q: the term for the number of entities

A: Given :-In the above question, a statement is mentioned

Q: The attributes made up of more than one single attributes are called     Single Value…

A: Answer: Composite

Q: This diagram shows the entities and entity relationships. The diagram is used to model data after…

A: Entity Relationship Model, or ER Model, is a high-level conceptual data model diagram. To create a…

Q: Question Write your Answer 1 Simple Attributes (any 2)   2 Composite Attribute   3 Multivalued…

A: Ans1) country_name and staff_code are simple attributes because they have atomic values which cannot…

Q: What is the term used to describe a non-key attribute in one entity that points to the primary key…

A: This is used to establish relation between two tables

Q: Define the term attribute and give examples for the entity you described in question 4.7.

A: An attribute is a specification that defines a property of an object, element, or file. It may also…

Q: Examine the following and draw parallels: Concentration vs breadth Case of Entity;Class of Entity

A: Generalizаtiоn: Generating an entity involves extracting common properties from a group of entities.…

Q: Please answer these 5 multiple choice questione by looking at this ERD diagram below. Thank you in…

A: Entity is a living or non-living component.Attributes exhibit the properties of an entity. A…

Q: Part 2: Relational data model. Take a subset of the ideas from the conceptual model you constructed…

A: The relational data model have the five entities and 24 attributes. pk -   primary key fk -  foreign…

Q: According to the data model, is it required that table every entity instance in the PRODUCT table be…

A: Inter-relationships between the data in the real world can be logically depicted by the data model.…

Q: xplain the following terms briefly: attribute, domain, entity, relationship,

A: **Kindly Note: As per our company guidelines we are supposed to answer only first 3 sub-parts.…

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.