A.What characteristics do tables that conform to the concept of well-informed relations have? B Describe a dependency diagram and explain its purpose

Q: Provide examples of relations that could have more than one candidate key.

A: Candidate key A candidate key is recognized as a "set of attributes" (or fields) with the ability…

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: re three reasons why the main key of a relation has to be replaced with a surrogate key?

A: Here are three reasons why the main key of a relation has to be replaced with a surrogate key.

Q: What characteristics do tables that conform to the concept of well-informed relations have? Describe…

A: Note:- As per our guidelines, we are allowed to answer only first question of multiple questions.…

Q: For merging two relations that are not physically sorted but share an index on the attributes in…

A: Your answer is given below.

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: You may assume the followings:    • Each material item has one or more vendor. Each vendor may…

A: To draw a dependency diagram and decompose the relation into a set of 3 NF relations, let's first…

Q: I have to generate a set of relations and functional dependencies which IS in BCNF, but IS NOT…

A: Answer is given below .

Q: Create an ER model related to the following entities and relationships: Department, Student,…

A: The Diagram of the ER model is attached here with the answer. Please refer to step 2.

Q: Describe the differences in meaning between the terms relation and relation schema.

A: A relation schema is the combination of list of attributes and their related domain types. An…

Q: Help normalize this into 4NF and make a diagram please? Or just explain the relations I should do.…

A: Here are the problems in existing table / relation: - Address and email are combined into a single…

Q: Based on the following functional dependencies, for the relation SCHEDULE bring it into a set of…

A: To bring the relation SCHEDULE into a set of 3NF relations, we need to identify the functional…

Q: 1. To keep track of students and their advisors, a university uses the table structure shown below.…

A: Note: As per our company guidelines we are supposed to answer only first 3 sub parts. Kindly repost…

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: In a composite primary key, a prospective key is a prospective characteristic

A: One primary key is a composite one.The primary key in database management systems consists of two or…

Q: Assuming that one item can only be stored in one location (that is, one room in one building),…

A: FUNCTIONAL DEPENDENCIES: Functional dependency is basically the relationship which exist between…

Q: Create a dependency diagram that is in second normal form

A:

Q: Based on the above, come up with a fully normalized set of tables. Make sure to document the process…

A: Race Name Race Location Race Date USAC # Cyclist LName Cyclist RName Team ID Team Name Team Sponsor…

Q: Given the ER diagram below, create relation schemas to capture the database design.

A: Database Management System(DBMS) is a software for storing and retrieving users data while…

Q: What is the reason that normalized relations may not compromise an efficient physical implementation…

A: Normalized relations don't always jeopardize the performance of the simple geometric structure,…