What is well-structured relation? Why are well-structured relations important in logical database design?

Q: In the context of database construction, what exactly are homonyms and synonyms, and why should they…

A: Introduction: In general, a database is a systematic collection of information or data that has been…

Q: Talk about the many alternatives for database tables when creating subtype relationships. Discuss…

A: Introduction: We are only authorized to respond to one question at a time, therefore please submit…

Q: There are two basic ways to design a well-structured relational database. The method in which a…

A: A database system as the management system as the file of the processing as the based service of the…

Q: Why do you think entity relationship (ER) diagrams in database design are necessary?

A: Entity Relationship Diagram is a conceptual, graphical, and logical structure of a database. Entity…

Q: Describe an entity, an entity type, and an entity set in a database management system?

A: Entity: The entity is an object, place, or thing which has its independent existence in the real…

Q: What is the generic term for an attribute and how is it used in a relational model, if applicable?

A: Given: Each type of relationship can have its own set of relationship attributes. Attributes are…

Q: How would you convey the value of a data model to a database designer?

A: First of all, the Data model is an abstract model which is organizing elements of data and relates…

Q: Explain Business Rule and its relevance to database design

A: Explain Business Rule and its relevance to database design

Q: What exactly is a database relationship? With the use of examples, define Cardinality and Modality…

A: Introduction: An organized collection of data that can be maintained and accessed easily, is called…

Q: What are the most major drawbacks of relational database management systems in general?

A: Relational database management systems (RDBMS) are considered to be among the most advanced and…

Q: What are the rules for measuring the quality of relational schema?

A: The question is on defining rules for measuring the quality of relational schema.

Q: What are the four characteristics of a properly designed relational database table?

A: DBMS:   DBMS stands for a database management system which is a software system that is used to…

Q: What is PrOPertieS Of relAtiOnS?

A: Given:  Properties of Relation

Q: Describe in your own words and illustrate with tables how relationships are represented in a…

A: Given: Describe in your own words and illustrate with tables how relationships are represented in a…

Q: ID library_item title N publishes magazines journal conference_proceeding book publisher date_of…

A: Primary key attributes- magazines- date of publish, date, id journal-volume, number, id book -…

Q: Explain how the entity relationship (ER) model helped produce a more structured relational database…

A:

Q: How should the relational database model be described?

A: Relational database : A relational database contains and allows access to data items linked to one…

Q: What are the importance of relational data model to end-user and designer.

A: To be determine: What are the importance of relational data model to end-user and designer.

Q: How to represent associative entity in a relational data model.

A: GIVEN: How to represent the associative entity in a relational data model.

Q: What is the relationship between relational algebra and relational database?

A: A relational database is a collection of data items with pre defined relationships between them.…

Q: Given the relation below named Student_Registration , answer the following questions. S_id S_Name…

A: 1.What is the relational schema of the relation Student_Registration? Student_Registration(S_id…

Q: Why do we do the normalization stage in database design, especially in the logical stage?

A: Normalization is an information base plan procedure that lessens information excess and takes out…

Q: Describe the relationship between mathematical relations and relations in the relational data model.

A: The mathematical relations and relations in the relational data model exist and works in accordance…

Q: 32. In a relational model, relations are termed as a. Tuples b. Attributes c. Rows d. Tables

A: The relational data model is a representation of the relationships between different relations in a…

Q: When it comes to database independence, how can you tell the difference between physical and logical…

A: Physical data independence is mostly concerned with how data is saved in the system. whereas logical…

Q: List three common scenarios in which relations should be denormalized prior to database…

A: Introduction: A normalised database typically involves combining several tables to get queries;…

Q: List three common situations that suggest that relations be denormalized before database…

A: List three common situations that suggest that relations be denormalized before database…

Q: What does it mean when a relationship is well-structured? In logical database architecture, why…

A: Introduction: A database is a logically organised collection of structured data kept electronically…

Q: Explain why the join operation in relational algebra can be an enormous drain on the database…

A: NOTE  :-  Below i explain the answer in my own words by which you understand it well.   Join is a…

Q: Why do you think entity relationship (ER) diagrams are important in database design?

A: Justification: An entity is a kind of data item or component. In an ER diagram, an entity is…

Q: What does it mean when a relationship is well-structured? In logical database architecture, why are…

A: Given:

Q: How does a database differ from a relation?

A: Answer : The main difference between relation and relationship in DBMS is that relation refers to a…

Q: Why do you feel entity relationship (ER) diagrams are crucial in regard to database architecture?

A: INTRODUCTION: Database architecture: Database architecture is a visual representation of a database…

Q: Explain why many-to-many relationships cannot occur in a relational database and provide an example…

A: Allow me to illustrate with an example: Consider a straightforward link between Authors and Books, A…

Q: What does the phrase relational database model really mean?

A: Explanation: In the Relational Model, the database is represented as a series of connections (RM). A…

Q: When people talk about "entity and referential integrity," do they mean that a database has both?

A: Introduction: The purpose is to find database issues caused by referential integrity issues. If we…

Q: Draw a single diagram that illustrates how the following concepts are related: • Data • Database •…

A: Database, data, or information is organized in such a way that allows for quick access and…

Q: What is the technique for converting a data model into a database design?

A: Introduction: You may use Access to create database apps that can be accessed through the Internet.…

Q: Discuss the alternative ways that normalization can be used to support database     design.…

A: Answer: There are so many alternative way to normalized databases design.

Q: When it comes to database architecture, why do you believe entity relationship (ER) diagrams are…

A: Introduction: An entity-relationship diagram represents a database's conceptual, graphical, and…

Q: What are homonyms and synonyms, and why should they be avoided when constructing a database?

A: GIVEN: What are homonyms and synonyms, and why should they be avoided when constructing a…

Q: How are relationships between entities represented in the relational data model?

A: Lets see the solution.

Q: why many-to-many relationships can't exist in a relational database, and justify with example?

A: Let me explain this with an example:   Try to think of a simple relationship between Authors and…

Q: 16.A row in a relation is calledSingle line text.   (1 Point)   17.A value of foreign key can be…

A: Since you have posted a question with multiple sub-parts, according to the company's policy we will…

Q: the concept of a business rule and how it relates to database architecture.

A: The concept of a business rule and it relates to database architecture

Q: the definition of a relational database, explain what is meant by "normalized relations" ?

A: Normalisation is the process of removing redundancy and anamolies from database.

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.