An attribute is a characteristic or a resource of an entity. To identify a person who maintains medical, student, and fitness club data in different database may the same qualities be applied to an object? Is there a good reason or a bad reason?

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A: Given database is Company's employment details, which contains entities individual, department and…

Q: Which ones are super keys for course? (a) course id (b) course id, title (c) course id, title,…

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Q: Create an E-R model for the following scenario. Show entity names, primary keys, attributes for each…

A: We need to create ER diagram for above case studies See below step for diagram.

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A: Introduction: Making sure that data is a accurate and consistent throughout its life is known as…

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A: M: N relationships may have associative entities OR single associative attributes that characterize…

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A: A relational database is a type of database that keep data and access points that are related to…

Q: Given the following EER diagram, write down the corresponding relations using the method taught in…

A: The answer is

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A: A tuple is a row also known as one record stored in table.

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Q: A attribute is an entity feature or resource. If the individual is an object, can the same…

A: Yes, if an individual is a business, the characteristics of another database will probably be the…

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Q: State two conditions that indicate when a database designer should consider using supertype/subtype…

A: A supertype is an entity which has a parent child relationship with a subtype, and it contains…

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A: Objective: An entity-relationship diagram should be designed to maintain a database for an airline.…

Q: What is the distinction between a repeated group and a straightforward multivalued attribute?

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A: Since we can answer only up to one question and three subparts. So we'll answer the first three…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: The answer has given below :

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A: Create a flight database. The website should keep track of customers and their bookings, flights and…

Q: What is the difference between single-valued and multivalued attributes

A: The difference between single-valued and multivalued attribute will be explained :

Q: Distinguish between physical database independence and logical database independence as they pertain…

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A: Given:

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A: The current set of entities is also called a database snapshot.

Q: Write the short answers for the given question. Answer in 3-5 line maximum. A. Give examples of…

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A: Cardinality: Cardinality refers to the maximum or minimal number of elements that may be included on…

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A: Defined the mapping relationship in a relational database

Q: Databases: Give six important properties of relations.

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Q: Consider a database used to record the marks that students get in different exams ofdifferent course…

A: According to question :   Considered the following attributes to draw the ER diagram: The entities…

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A: Answer: Functional dependencies might be violated when a relation is enlarged to incorporate a time…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: Actually, database is a used to stores the data.

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A: Diagram of dependency among relations:               Architecture of Distributed Database:

Q: An attribute is a characteristic or resource that is specific to an entity. Is it possible to…

A: In a database table, attributes define the qualities or properties of an object. In a database…

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A: The given is a database problem where the relational database is to be created based on the given…

Q: Suppose that the initial conceptual design of the Car Rental database consisted  of just a single…

A: The question has been answered in step2

Q: Give an example of three entities that might exist in a database for a medical office, and list some…

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Q: Does a database's compliance with entity and referential integrity imply that it is trustworthy, or…

A: Integrity of Referential Citations: Referential integrity explains the relationship between tables.…