(1) Please show that each of the followings is not  a valid rule about FD’s by giving a counter example. (Note that you are allowed to use only (a and b) two symbols to construct your tuples.) (a) If AB→C and A→C, then B→C. (b) If AB→C, then A→C or B→C.

Q: Determine whether the relation R on the set of all real numbers is reflexive, symmetric and/or…

A: (a) A = Set of all real numbersR = {(x, y) |x + y = 0} The relation R is not reflexive, because x +…

Q: Explain the importance of "Dimensional Hierarchies" in the context of OLAP operations.

A: In OLAP (Online Analytical Processing), dimensional hierarchies are a fundamental concept that…

Q: Q 3. (a) What is a relational database and explain how a relational schema is derived from a…

A: (a) The database system is divide into database and database management systems(DBMS). The database…

Q: ALGORITHM 1 A Procedure for Computing the Transitive Closure. procedure transitive closure (MR:…

A: - We have to give the transitive closure of the relations using the algorithm.    - I am using C++…

Q: Make a case for each of Armstrong's axioms (reflexivity, augmentation, and transitivity) using the…

A: To show the Armstrong’s reflexivity axiom is found: A function dependency A→B which holds true only…

Q: Roadside Assistance System General Overview: We are interested in developing an application for…

A: The below given diagram describe the  Sequence Diagram Of Road Assistance System :

Q: Define the term Second normal form (2NF)n?

A: GIVEN: Define the term Second normal form (2NF)n?

Q: Give examples of binary 1:N relationships, other than those in this text, for (a) an…

A: Given question has asked to give examples of binary 1:N relationships;      2. a) an…

Q: Complete the following clojure program to add two new family relations (Niece and Nephew) as well as…

A: A collection of instructions written in the Clojure programming language is called a Clojure…

Q: Explain the concept of domain-key normal form (DKNF) and its significance in the normalization…

A: Domain Key Normalization (DKNF) is a level of database normalization that focuses on maintaining…

Q: Given the relations U and S below, use ordered pair notation to express the relation So U. a b b

A: To express the relation SoU (composition of relations S and U), find all pairs (x, y) such that…

Q: For each recurrence relation below indicate either which case of the master theorem applies, or else…

A: Dear Student, The detailed answer to your question is given below with required explanation -

Q: (a) Explain the operators supported by pig with respect to data access, transformations and debug-…

A: Given data:-

Q: PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies, using…

A: Given:- i. PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies,…

Q: Construct an E-R diagram for a car insurance company whose customers own one or more cars each. Each…

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

Q: 1. If we project the relation R(A,B,C,D,E) with dependencies A→→BC, B→D, and C→→E onto S(A,C,E),…

A: Answer is given below-

Q: Recursive Thinking: Relations You have a starting salary of $2000 per month with a 5% raise each…

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

Q: e relation do

A: Given recurrence relation is, an = -2an-1 initial condition is a0 = -1 For finding of successor…

Q: Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.

A: Here we decompose it in 3nf and check dependency preserving.…

Q: There are certain constraints imposed by selection structures in computer programming,…

A: Selection structures in computer programming, such as if-else statements and switch-case statements,…

Q: Question 2. Convert the following CFG to an equivalent CFG in Chomsky normal form. Show all your…

A: Given, S --> ABA --> aAA | εB --> bBB | ε

Q: Simplify the following Boolean Expression and create the logical diagram usingNAND or NOR…

A: Given, F(A, B, C, D) = ∑m {1,3,5,7,8,10,12,14} First we need to find an expression using K-map As we…

Q: Name the functional dependence and provide the determinant(s) in the following equation: Length *…

A: The answer is given in the below step

Q: ss Boyce-Codd Normal Form (BCNF) and its relationship with 3NF. What are the conditions that a table…

A: When we talk about relational databases, normalization is an essential concept that aids in…

Q: Explain principle of substitutability with suitable example?

A: Explain principle of substitutability with suitable example:

Q: True/False: a) There exists a mapping reduction from ETM to EDFA. b) There exists a mapping…

A: Please give positive ratings for my efforts. Thanks.   ANSWER   a)   Yes, there exists a mapping…

Q: Apply the strongly connected component (SCC) algorithm described in the course to identify all the…

A: Pseudo Code: 1. For each vertex u of the graph, mark u as unvisited. Let L be empty. 2. For each…

Q: a)Consider the following formula,  ∀x∀y(∃z(p(x, z) ∧p(z, y)) →g(x, y)) Use equivalences to…

A: Answer: This question based on some logic we will discuss one by one Prenex normal form Algorithms…

Q: List all possible relations on the set {0,1} and determine which of these relations are (a)…

A: To list all possible relation on set {0,1} and determine reflexive, symmetric, antisymmetric and…

Q: For each one of the domain specification given below, identify all the functional dependencies, and…

A: Database Management System. 1NF: A relation is in 1NF if and only if all underline domain contain…

Q: Electrical connectivity is an example of equivalence relation. a) true b) false

A: Electrical connectivity is an example of equivalence relation. Answer is true.

Q: Explain the benefits of Normalization, What is NM2 and NM3 form? Explain it with examples Note:…

A: Normalization: Database Normalization is the process of structuring a relational database. The…

Q: Computer Science Given the relation R (A, B, C, D, E, F, G) and the set of functional dependencies:…

A:

Q: the CFGs given are ambiguous or not

A: The CFGs given are ambiguous or not

Q: Explain in detail the ring algorithm with the help of diagram.

A: A process or set of rules that a computer should follow, especially in computations and other…

Q: Write the following CFG in Chomsky Normal Form. S → CaS | cSb c C→ abC | A | A A→ bAb |c

A: A context free grammar is in CNF, if the production satisfies one of the following conditions If…

Q: “Explain the difference between the Sumif and Sumifs Functions.  Then provide relevant examples to…

A: In Excel, the SUMIF and SUMIFS functions are both used to add up values in a range based on certain…

Q: Let A={g.b.c.d.e} and S, T, U and V relations on A where S = {(aa), (ab), (bc), (kd), (ce), (ed),…

A: Answer is C

Q: The USES relation naturally forms a graph. As mentioned in the lecture, the USES relation graph…

A: Adjacency List: In graph theory,  an adjacency list is a collection of unordered lists used to…

Q: Identify any two examples for each of the following dependencies from the statements (from S₁ to s.)…

A: Please upvote. I am providing you the correct answer below. Please please please.