relationship between entities and attributes.

Q: Question: Draw a diagram showing the relationships for all the tables. The following tables need to…

A:

Q: 39 Refer to the following ER diagram to answer the question below: PK Student SSN Name Year GPA How…

A: Answer:-   The correct answers are: A) The CampusID attribute in the Registration relation is a…

Q: Explain why an index is only helpful if an attribute's values are sufficiently diverse.

A: Introduction Use of an index with a wide range of values A file index is a table or other data…

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: EPCode EPName FundSource Description EXTENSION_PR OGRAM ActCode Venue ActName Budget Date Lname…

A: The relational schema for the given ERD is given below. Since Collaborators is a multivalued…

Q: Normalise the following table named 'PROPERTY' to remove modification anomalies showing all steps…

A: 1NF(All attributes should be atomic) Composite Primary key : ClientNo,PropertyNo ClientNo…

Q: Explain why an index is only helpful if an attribute's values cover a suitable range. This is the…

A: The above question is answered in step 2 :-

Q: Convert the Entity Relationship Diagram in to QI. relational database by using MS Access (Note:…

A: maintain the oder of creating table CUSTOMER TABLE CREATE TABLE CUSTOMER( CUSTOMER_ID NUMBER(5),…

Q: How to Doing "Update-Database" within your code in Entity Framework.

A: The databases used by non-development environment applications frequently need to be updated. After…

Q: Consider the following relations: Employee(E_id: integer, E_name: string, Age: integer, Salary:…

A: Referential integrity constraints are rules that ensure that the references from one table to…

Q: Leslie’s Auto Sales has a relational database with which it maintains data on its salespersons, its…

A: Introduction: An ER diagram (Entity-Relationship diagram) is a graphical representation of entities…

Q: Determine the average salary of the employees who do not live in Greensboro. Rename the average…

A: We have to Determine the average salary of the employees who do not live in Greensboro.Rename 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: Entities: 1. Shuttle Vehicle: • Attributes: Vehicle ID, Type, Capacity 2. Trip: Attributes: Trip ID,…

A: The Entity-Relationship Diagram (ERD) provides a visual representation of the database structure…

Q: hand draw an entity-relationship diagram to visually represent a database design this an example,…

A: Given: hand draw an entity-relationship diagram to visually represent a database design

Q: Please transform the following Entity-Relationship Schema (Diagram) into a Relational Schema. Please…

A: Here PNo and SSno are primary key.  The following are the entities : PROJECT, EMPLOYEE, ENGINEER The…

Q: Translate the following ER Diagram into relational model. Show different relations that will result…

A: Relational Model is used for modelling data in the form of relations or tables. It represents how…

Q: According to another non-key attribute, what is the connection between the primary key and a non-key…

A: The term "functional dependence" refers to the relationship between two features. A relationship,…

Q: ERD and Keys A hotel has many rooms.  A guest can make a reservation for one room or multiple…

A: ERD is called the Entity-Relationship model. ERD diagrams are used to draw the relationships between…

Q: Explain the significance of cardinality in relationships between entities.

A: The concept of cardinality in Entity Relationship (ER) modeling refers to the aspect of…

Q: Assume you are a database developer for a company. You were asked to design a database for a…

A: If we convert the given information into Entity Relationship Diagram, the entities present in the…

Q: relationship between the entities(did not show the relationship) and the contraints

A: The solution for the above-given question is given below:

Q: A candidate key is a characteristic that is part of a composite primary key.

A: Candidate key: It is a set of attributes that uniquely identify tuples in a table. Candidate Key is…

Q: QUESTION 5 A functional dependency is a relationship between or among : Attributes Rows Entities O…

A: Here in this question we have asked that a functional dependency is a relationship between or…

Q: Entity, relationship, and attribute names and definitions should all be correct.

A: An entity relationship diagram (ERD) also known as an entity relationship model is a graphical…

Q: Lab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM…

A: The relation schema for the table structure is given below, CHARTER (CHAR_TRIP, CHAR_DATE,…

Q: It is known that we should avoid redundant data. Let’s say you have a Product Table with the cost of…

A: Database Design:- As the user’s requirements change,so developers need to change DBMS from time to…

Q: ER model relationships are represented using a.) relationship keys b.) primary keys c.) crows…

A: To find the solution for: ER model relationships are represented using  What do the cardinalities…

Q: C1. "Nomadic Desert Camp, Oman" requires an Information System to maintain the details of the…

A: The given scenario is related to an  amusement booking system for which an ER diagram has been…

Q: Explain how functional dependencies can be used to indicate the following:• A one-to-one…

A: The functional dependency is a relationship that exists between two attributes. It typically exists…

Q: Normalise the following relation to remove modification anomalies showing all steps for 1NF, 2NF and…

A:

Q: A derived attribute is a Illustrate. What are the benefits and drawbacks of storing derived…

A: Stored attributes are those attributes that are stored in the physical database for e.g date of…

Q: What do you meant by simple and composite attribute?

A: GIVEN:     What do you meant by simple and composite attribute?

Q: Given the following ERD. ID name salary Instructor Grades teaches ID name salary Student 1) What is…

A: - We need to talk about the ERD diagram provided.