According to the data model, is it required that every entity instance in the PRODUCT table be associated with an entity instance in the CD table? Why or why not?

Q: Do the tables in figure 1 exhibit entity referential integrity? Why or why not?

A: Do the tables in figure 1 exhibit entity referential integrity? Why or why not?

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: What is the difference between a data entity (data model) and an external entity (process model)?

A: The data model defines how the data is stored and processed in an organization. There are three type…

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: Let's do this! ACTIVITY 1: DEFINITION OF TERMS Based on the discussion, define and describe the…

A:

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

A: Below i have answered:

Q: e attributes of each entity are as follows: aff Entity's attributes are Staff No, Fname, Lname and…

A: Here is the simplified solution to the given problem statement:

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

A: 1. Each student can have only one social security number and a social security number can belong to…

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

A: 1. Student can only one social Security number while a social Security number can belong to only one…

Q: Distinguish between Data Dictionary and Entity Relationship diagram. Give examples to illustrate…

A: According to the information given:- We have to distinguish between Data dictionary and entity…

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: 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: Do the tables in figure 1entity exhibit entity integrity? Why or why not?

A: Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity…

Q: Analyze the given entity relationship diagram and answer the following questions. What is the…

A: ER Diagram: An entity–relationship model (ER model) uses a diagram called an Entity Relationship…

Q: Analyze the given entity relationship diagram and answer the following questions. What…

A: Note: As, per our guidelines we can able to answer only three subdivisions. So, please repost the…

Q: Analyze the given entity relationship diagram and answer the following questions.   What is the…

A: Part(1) Degree of relationship is basically the number of entities that in general participates in…

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: 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: 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: 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: Analyze the given entity-relationship diagram and answer the following questions.   What is the…

A: Part(1) Degree of relationship is basically the number of entities that in general participates in…

Q: Subject: Database Identify ALL errors and correction on the entity relationship diagram (ERD) given…

A: The er diagram with a mistake is highlighted in figure 1 and correct er diagram is given below in…

Q: Develop a simple data model for a student database that includes student data, student contact data,…

A: To create the data model for the given information the data model contains four tables: -…

Q: What are the benefits of utilizing the same data model for both conceptual and logical design? For…

A: The answer :

Q: Q1 / answer the following: 1- The difference between relational data model and entity- relationship…

A: 1. In Relational data model , the relationship between entity is represented using table. While…

Q: Applying your knowledge in Enhanced Entity Relationship modeling, Develop an EER model for the…

A: Answer: We will draw our EER model for the given situation, using the traditional EER notation or…

Q: Can you identify what each weak entity in this diagram

A: Weak entity means those entities which doesn't have primary key of itself and therefore depends on…

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

A: The question has given an entity-relationship diagram that shows the entities and their attributes…

Q: Differentiate between weak entity set and strong entity set. Give example drawing ERD for the weak…

A: Entity: An entity could be any physical or virtual real-world object that can be accurately…

Q: When an attribute should be extracted from one entity type and placed in a related entity type,…

A: The answer is given below:-

Q: Explain the logical connection between the entities entity, attribute, and relationship in a few…

A: The logical connection between the entities entity, attribute, and relationship

Q: Suppose that we have to create a database for a car dealership.   Identify 2 entities How the…

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

Q: QUESTION 4   For the following collection of entities, give the assumptions concerning the…

A: Given entities: ORDER (order#, ordDate, cust#, cName ) ORDER_PART ( order#, part#, quantity )  PART…

Q: for part of a BANK database. Consider the ER diagram shown in . Each bank can have multiple…

A: The list of non - weak / strong entity types in the ER diagram are as follows:  • LOAN • CUSTOMER •…

Q: 48. Collection of tables to represent both data and relationship is described by _____________. a.…

A: Question 48. Collection of tables to represent both data and relationship is described by…

Q: 48. Collection of tables to represent both data and relationship is described by _____________. a.…

A: Given that, 48. Collection of tables to represent both data and relationship is described by…

Q: MVC is an acronym for Model View Controller. How will you use MVC in the stock exchange industry as…

A: Stock Markets and the MVC pattern In this, we will implement a simple example of the MVC…

Q: . Create a data model from the below and ensure it show:    a.) Attributes    b.) Entities    c.)…

A: Summary :- We got our result.

Q: In all cases, a weak entity set may be converted into a strong entity set by adding the primary-key…

A: Introduction: Adding the primary key features of an identifying entity set to an entity set's…

Q: Q2/II draw the entity relationship for each of the following: 1-" a student studies one or many…

A: ANSWER: Entity Relationship: Entity: Entities are the essential objects of ERDs. These are the…

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: Task to do: i. Identify Entities with atleast 10 attributes per Entities. ii. Identify all…

A: Identify Entities with atleast 10 attributes per Entities. class attributes farm…

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

A:

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 the E-R diagram (Crow’s Foot Model) and Relationship Schema to show the relationships between…

A: Draw the E-R diagram (Crow’s Foot Model) and Relationship Schema to show the relationships between…

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: 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: Answer these questions please. 1-Draw the Relational Schema for the relationship(s) between STORE…

A: ANSWER:-

Q: Create an entity-relationship diagram for the three entities showing the correct cardinalities

A: An entity-relationship diagram for the three entities showing the correct cardinalities is as…