Sorry but I don't understand anything with your explication , can you please read the text and give me a WRITE solution

Q: Suppose ρ is the relation defined on P({1, 2, 3}) in which, for A, B ∈ P({1, 2, 3}), AρB means "A…

A: Given: P({1, 2, 3}) A, B ∈ P({1, 2, 3}) AρB means "A and B both have exactly 2 elements."  ρ is…

Q: Give an algorithm for testing whether a relation scheme is in BCNF. The algorithm should be…

A: The question has been answered in step2

Q: Give some instances of relationships that may have more than one candidate key to consider.

A: Answer for the given question -   Candidate key: A candidate key is recognized as a "set of…

Q: Make a hybrid merge-join variant that works in scenarios where neither relation is physically sorted…

A: Introduction: Merge join and hybrid merge join are different. Before utilising merge join, we sorted…

Q: For the ER diagram below, which of these statements is correct? Check all that apply. A B There are…

A: answer :- option B) all rows in A are linked to at most one row in B.

Q: Given the relation U below, use ordered pair notation to express the relation U o U. U o U = { Ex:…

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

Q: Consider the relation Project(pid,name,budget) with relation instances {(100,'GOTAM',30000),…

A: We need to find the degree of the given relation.

Q: Correct and detailed answer. I will Upvote. Thank you   An Association Rule is an implication…

A: The number of unique items is 12. for n items, we can make 2n item sets in which one will be empty…

Q: Make a hybrid merge-join variant that works in scenarios where neither relation is physically sorted…

A: Introduction: Merge join and hybrid merge join are different. Before utilising merge join, we sorted…

Q: 1. Given each relation write down the properties that the relation has. If the relation does not…

A: Below is the answer with explanation:

Q: With a simple example, explain aproximiation and how it may be accomplished using a fuzzy relation

A: Fuzzy relation:

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: Н.W: Al/ Which of these relations on {0, 1, 2, 3 } are equivalence relations, why? а) R1- {(0, 0),…

A:

Q: A link like the second course can be built from a collection of many-to-one relationships. Do the…

A: Consider a many-to-one connection that generates a relationship with primary and foreign key…

Q: One of the benefits from Graph Database is it is significantly faster than traditional Relational…

A:

Q: Show how to represent a 1:N recursive relationship in your answer to question 5.29. How does this…

A: Given: Show how to represent a 1:N recursive relationship in your answer to question 5.29. How…

Q: oximiation, and how can it be performed using fuzzy rel

A: Introduction: Below describe the approximation and how can it be performed using fuzzy relation?

Q: One of the benefits from Graph Database is it is significantly faster than traditional Relational…

A:

Q: Assume that we have four relations R(A, B), S(A,C), T(A,D) and U(A, E) and the size (i.e., the…

A: Hash join: Hash join is used in relational database system. It is used to perform nature join or…

Q: A link like the second course can be built from a collection of many-to-one relationships. Do the…

A: Consider a connection: That results from a many-to-one relationship with limitations on the primary…

Q: For the following number patterns write the recurrence relation i) 5, 8.2, 11.4, 14.6, …. ii) 400,…

A: Recurrence relation for above are:      i)  an  = an-1 + 3.2            ;  n >= 1     a0  = 5

Q: b) Express the following relation using a set-builder notation R = {(1, 2), (2, 6), (3, 9), (4, 16),…

A: Set-builder notation is a mathematical notation for describing a set of representations.

Q: Construct a field with 5 elements. Draw the tables of addition and multiplication. Hint 1. Let the…

A: Here is the table of addition for the field with 5 elements {0, 1, a, b, c}: +  | 0  1  a  b…

Q: A link like the second course can be built from a collection of many-to-one relationships. Do the…

A: Consider a connection: That results from a many-to-one relationship with limitations on the primary…

Q: Consider the relation Project(pid,name,budget) with relation instances {(100,'GOTAM',30000),…

A: The cardinality of the above relation is 4  Cardinality is just number of tuples in a relation.

Q: SELECT * FROM INFORMATION_SCHEMA. TABLES WHERE (TABLE SCHEMA = 'KIMTAY');

A: Answer: Given some SQL command is given and we need to describe the SQL command

Q: Question 9: The maximum number of superkeys for the relation schema R(E,F,G,H) with E as the key is…

A: The maximum number of superkeys for the relation schema R(E,F,G,H) with E as the key is 8. Option 4…

Q: The p operation eliminates duplicate tuples in the resulting relation. So: p Gender, Salary…

A: The question is ambiguous, it can't be determined if the user wants to remove all the duplicates…

Q: For each of the following pairs of expressions, give instances of relations thatshow the expressions…

A: Right Outer Join: When two tables are joined using Right Outer Join, all the records from the second…

Q: Explanation with each Show the recurrence relation tree using subtition method T(n) = 8T(n/4) + n2

A: Please refer below for your reference:

Q: A bridge/joint table is just what it sounds like. What should you do instead? What's wrong with the…

A: The answer is given below step.

Q: For the ER diagram below, which of these statements is correct? Check all that apply.

A: 2 and 5 are correct options

Q: Can renaming be pushed through join and selection—that is, which of the following algebraic laws…

A: SUMMARY: -   Hence we discussed all the points.

Q: For a given relationship set, R = {A, B, C, D, E, F} and FD : A->B, C->D, E->F . Calculate F+ of A,…

A: Closure of an Attribute: A set of attributes that can be functionally derived from an attribute is…

Q: Make a version of the hybrid merge-join method that works when both relations are not physically…

A: The hybrid merge-join method can be modified to work with relations that are not physically sorted…

Q: For each of the following pairs of expressions, give instances of relations thatshow the expressions…

A: σθ (E1 ⟕E2) and E1 ⟕σθ(E2) are NOT equivalent because the order of applying the selection operation…

Q: "Observe that the values of h(n) seem to be related to powers of 3" In what way are 2, 5, 14, and…

A: h(n) = {1 if n = 1; 3 × h(n - 1) - 1 otherwise}We need to express this in polynomial/xponential…

Q: Please written by computer source Given g(x)=2(3)^(x+7)-4, state the attributes and transformations…

A: The given function, g(x) = 2(3)^(x+7) - 4, is an exponential function with a base of 3 that has been…

Q: 1. Suppose that you have the relation R with n tuples and the relation S with k tuples without…

A:

Q: If you want to find out parent and child relationship in the same table as Product and Sub Product…

A: Regular join: When the parent and child tables preserves the referential-integrity, then it can…

Q: What is the solution to the recurrence relation: Tn=5nTn-1+6 with To=3?

A: Note: As no programming language is mentioned. So I am using java to code this.

Q: Question 2. Let there be relation R(A, B, C, D, E) with FD set: {A → BC, C possible? D, D → A}. How…

A: total number of super key is :: 8   solution provided in step2

Q: I. Reflexive II. Symmetric I. Transitive IV. Antisymmetric For each of the following tvpes of…

A: - The question wants to know that what categories fell under the partial , total and equivalence…

Q: Consider the join of relation a with a relation b. If A has k tuples and B has r tuples then the…

A: The maximum size of join is r.k (no matching constraint, the natural join will produce a Cartesian…

Q: write this in relation algebra:  SELECT s.sname FROM student s, reservation r WHERE s.sid!=r.sid

A: SQL statement to relational algebra is written in step 2.

Q: Given the relations U and T below, use ordered pair notation to express the relation To U. ToU =…

A: To express the composition of relations T and U (T o U) in ordered pair notation, we need to…

Q: Give an algorithm for testing whether a relation scheme is in BCNF. The algorithm should be…

A: