Question1: Consider the Entity Relational (ER) schema of relation R= (A, B, C, D, E(E1, E2)); knowing that there are the following functional dependencies (f.d.): fd1: {A, C} {B, E} fd2: {A} → {D} 1. Can you guess the primary key attribute(s)? Justify your answer 2. Is R in 1NF? If "yes" why? If not modify R so as to put it in 1NF. Let us call R1 the result of this step 3. Is R1 in 2NF? If "yes" why? If not modify R1 so as to put it in 2NF. Let us call R2 the result of this step 4. Is R2 in 3NF? If "yes" why? If not modify R3 so as to put it in 3NF

Q: Specify the features of a working SQL database.

A: The answer is given below step.

Q: Computer scienceWhat do you understand by query optimization?

A: Introduction: to inquire of, especially when seeking reliable information What do you understand by…

Q: What are the downsides of using a database?

A: A database is a structured collection of data that is organized and stored in a way that allows for…

Q: e concept of a relational database and its key components

A: As we embark on this journey to understand relational databases, it's essential to have a bird's-eye…

Q: Explain the basic principles and components of a relational database system.

A: In the field of Computer Science Engineering, a database system plays a role.It provides an…

Q: Explain the concept of database indexing and its impact on query performance. Provide examples of…

A: In the field of database management systems (DBMS) database indexing is a concept that plays a role…

Q: Describe the whole process of creating and using a database.

A: Given:   Describe the whole process of creating and using a database.

Q: Explain the role of indexing in database systems, including the types of indexes available and the…

A: Structured data collections are arranged in database systems to facilitate effective data retrieval,…

Q: Database managment: Describe key decisions in Physical database design

A: The key decisions that should be taken while designing a physical database are:-  picking the proper…

Q: Information Retrieval Given a query, how would you parse and dispatch sub-queries to the…

A: Complete answer for dispatch sub-queries to the various indexes:

Q: Explain the similarities and differences between accessing data via a database query and via a web…

A: Both approaches are vital for retrieving information remotely, but they possess distinct…

Q: Explain the role of distributed query optimization in improving the efficiency of data retrieval…

A: Organizations handle vast amounts of information stored across various databases. Distributed…

Q: Using database software, the ability to define and operate on a basic database

A: Introduction: Access and administration of data are made easier using a database, a collection of…

Q: Explain the role of query optimization in database management and provide examples of optimization…

A: Query optimization is a critical aspect of database management, aimed at enhancing the performance…

Q: Describe the different database transactions and query types.

A: The Answer is in step2

Q: Display job Title, the difference between minimum and maximum salaries for jobs with max salary in…

A: The table name is JOB and consist of the following attributes, Job_title, minimum_salary,…

Q: Explain the concept of database triggers and their use cases in database development. Provide…

A: Designing, building, testing, and implementing databases to store, retrieve, and manage data are all…

Q: Explain the role of concurrency control and transaction management in distributed database systems.

A: Concurrency control and transaction management are essential components of distributed database…

Q: he importance of indexing in relation

A: Solution - In the given question, we have to describe the importance of indexing in relation to the…

Q: How familiar are you with adding data about users to a database?

A: Introduction Database:  The collection of distinct, compact pieces of information are called data.…

Q: the key components of the database

A: The question asks for an explanation of the key components of a database.

Q: Explain the concept of indexing in databases. How does indexing improve query performance, and what…

A: Indexing in databases is akin to the index in a book, providing a systematic way to locate specific…

Q: Explain the concept of indexing in databases and its impact on query performance.

A: Indexing is the process of creating auxiliary data structures which provide a fast and efficient way…

Q: Describe the features of a database management system.

A: The above question that is features of database management system is answered below step

Q: Explain what a database is intended to do.

A: Data are raw facts and figures which upon processing produces information. Gathered information is…

Q: What are the different types of indexes available in most relational databases?

A: What are the different types of indexes available in relational databases?

Q: Explain the role of indexing in database performance optimization. Discuss different types of…

A: Optimizing the performance of a database relies heavily on indexing.Databases serve as repositories…

Q: What are the top two methods used to acce

A: In today's digital age, databases play a crucial role in storing and managing vast amounts of…

Q: Short answer What are the most significant advantages of using a database-driven approach?…

A: Introduction: Using a database strategy may provide your firm with a number of advantages, benefits,…

Q: Explain what is meant by the term superkey in a relational database.

A: A relational database is a structured system for storing and managing data using tables with rows…

Q: What are tables and fields in the database?

A: TABLES: Tables are database objects that hold all of a database's information. Tables are similar…

Q: Explain how NoSQL databases handle complex data types and provide examples of popular NoSQL…

A: NoSQL databases have gained popularity due to their ability to handle complex data types…

Q: Describe the importance of indexing in relation to the use of databases.

A: To be decided: Discuss the function of indexing in the use of databases.

Q: Explain the various kinds of database queries and transactions.

A: Database queries: Database queries are those queries which helps to manage, create, delete and…

Q: Explain the various kinds of database queries and transactions.

A: Given: Big data is characterized by two fundamental characteristics: speed and variety. 1.…

Q: How does one input user information into a database?

A: In computer science, databases are commonly used to store and manage large volumes of data…

Q: Explain the concept of indexing in databases and its role in query optimization.

A: The answer is given in the below step

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.