You may assume the followings:    • Each material item has one or more vendor. Each vendor may supply one or more.  items or may not supply any items.  • The unit price for a material item may vary from one vendor to another.  • The terms for a supplier are the same for all material items ordered from that supplier.     Please answer the following questions:  1. Draw a dependency diagram to show the functional dependencies in the relation.   2. Decompose the relation into a set of 3NF relations

Q: Here's a relation (R), its attributes and its functional dependencies (F): R(A, B, C, D, E, F, G)…

A: Given functional dependencies: BC -> DG CD -> F FG -> A 1. Closure of {ACD}+ is: {ACD}+ =…

Q: You are working with a database that stores information about suppliers, parts and projects. The…

A: Ans:)  The queries for above parts are given below.

Q: Question 1 Suppose you are given a relation R = (A, B, C, D, E) with the following functional…

A:

Q: Develop a diagram that shows the functional dependencies in the SHIPMENT relation

A: To create a functional dependency diagram, functional dependence means that a dependency value from…

Q: AC→D, AB→C, AB→D, AB→E

A: Option C: Third normal form

Q: Can instances of a relation (sample data)prove the existence of a functional dependency? Why or why…

A: Lets see the solution.

Q: 2 Consider the following functional dependencies for the given relation. R={A, B, C, D, E, F) AB->CD…

A: Dear Student, The answer to your question is given below -

Q: Diagram into a col y of the constraints as possible. ote: Courses is a weak entity set, and Number…

A: the relational schema is given below

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: Consider a relation (A, B, C, D, E, F, G) with functional dependencies as given below: ABC D ED-F…

A: Consider the following relation with set of functional dependencies: R (A, B, C, D, E, F, G)…

Q: HouseSale (houseID, agentID, dateSold, commissionRate, interestRate) Where: dateSold →interestRate…

A: Answer: Given  HouseSale(houseId, agenId, dateSold, commisionRate, InterestRate)…

Q: this information. Find all the candidate keys. What type of de

A: Relational Database A relation R is given which is R(A,B,C,D,E). It has the following functional…

Q: Following relation schema exists : EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS).…

A: Answer: Given  EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS). Functional dependency…

Q: Given the relation R(A, B, C, D, E, F), the following functional dependencies exist: B --> C, D D…

A: Given : R(A, B, C, D, E, F) B --> C, DD --> F

Q: Consider a relation named as BOOK that contains data about the books in a library. BOOK relation was…

A: Dear Student, It's in first normal form as all the values are atomic ie does not contain multiple…

Q: Consider the unnormalized relation R with six attributes ABCDEF and the following functional…

A: Objective: A relation R is given with 6 attributes ABCDEF along with functional dependencies as: AB…

Q: What is the connection between the primary key of a relation and the functional relationships that…

A: Introduction Functional dependency: A connection between two qualities is termed functional…

Q: Consider the following relation with functional dependencies as shown below. R{sno, sname, age, cno,…

A: Given:

Q: Consider a relation named as BOOK that contains data about the books in a library. BOOK relation was…

A: The given relation "BOOK" is not in BCNF (Boyce-Codd Normal Form) because it has dependencies where…

Q: Table 4-8 shows a portion of a shipment table for a large manufacturing company. Each shipment…

A: (a) Functional dependencies in the SHIPMENT  relationare:(origin,…

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: DATABASE SYSTEM A relation R is given which is R(A,B,C,D,E). It has the following functional…

A: BC  -> ADE , D -> B primary key is (BC) because: Closure of (BC)+ = {A, B, C, D, E} here, the…

Q: How does the primary key of a relation relate to the interdependencies of its characteristics from a…

A: The primary key is a unique identifier for each record in a table. It is used to ensure that each…

Q: A relation R is given which is R(A,B,C,D,E). It has the following functional dependencies: BC -> D,…

A: A relation is in second normal form, if it is in first normal form and relation must not contain any…

Q: First determine which normal form (1NF, 2NF, 3NF or BCNF) the above relation is, and why.…

A: Here we identify, which normal form: figure 2: here explanation why it is not in BCNF,3NF and 2NF.…

Q: Write a relation algebra based on the following algebra: Book (BookID, Price, Year, Author,…

A: Relation algebra uses operators to perform the query. It provides the theoretical foundation for…

Q: Explain how functional dependencies may be used to indicate: • The entity sets student and teacher…

A: Justification: A functional dependence is an attribute-to-attribute link. We may get the value of…

Q: List all nontrivial functional dependencies satisfied by the relation of Figure 7.18.

A: NON-TRIVIAL FUNCTIONAL DEPENDENCIES: Functional dependency refers the concept in which one…

Q: Consider the following relation with functional dependencies as shown…

A: Given relation is in First normal form

Q: What is the link between the main key of a relation and the functional connections between all of…

A: Introduction: Primary and foreign keys are the cornerstones of relational database theory. Primary…

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

A:

Q: with the following attributes R(A,B,C,D,E). Assume that you were given the following functional…

A: You are given a relation R with the following attributes R(A,B,C,D,E). Assume that you were given…

Q: Given the following relation: R (A, B, C, D, E, F, G) The functional dependencies that apply onto R…

A: The question is on database normal forms and functional dependencies.

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.