is an ordered *.collection of objects relation set non of them O
Q: has two relations ch a is the primary is the primary key nce of P has 70 Tup s 42. What is the m in…
A:
Q: recurrence relation Un
A: Answer:- an = ( 2 - n + n²) (1)^n
Q: Let a bus timetable be represented by a list of routes where each route is repre- sented by…
A: I Have answered this question in step 2.
Q: the recurrence relation f(n)=af(n/b)+g(n), the size of subproblem is n/b
A: In the recurrence relation f(n)=af(n/b)+g(n), the size of subproblem is n/b. True…
Q: Why are Minimal Superkeys referred to as Candidate Keys?
A: Introduction: A superkey is a collection of properties in the relational data architecture that…
Q: How many minimal keys this relation has? A B C DE F G 1 4 4 4 2 4 3 2 5 4 4- 2. 4- 2. 3. 4. 2. 3. 4-…
A: Given that how many minimal keys this relation has? actually it required 6 keys to give a relation…
Q: The Factory Pattern is an approach that allows us to traverse over collections, series and sequences…
A: Answer: The Factory Pattern is an approach that allows us to traverse over collections, series and…
Q: Suppose relation R(A,B) has 5 tuples, S(B,C,D) has 3 tuples, and T(M,N) has 4 tuples. Also, suppose…
A: Given R(A,B) has 5 Tuples, S(B,C,D) has 3 tuples , and T(M,N) has 4 Tuples
Q: Given: Relation R = {(a,c), (b,c), (c,c)} and Set S = {a, b, c} %3D Complete Relation R to be…
A: Given: To make the relation R symmetric.
Q: How many symmetric relations on an n-element set are there?
A: About the symmetric relations on an n-element
Q: Consider the following database schema for University Library database. A student can borrow many…
A: Select ISBN,Title,Author from BOOK where title like '%Database%' order by ISBN Desc;
Q: Constructing a link such as second course may be done by starting with a number of connections that…
A: Introduction: Let's say we have a connection that was produced from a many-to-one relationship and…
Q: What is the relation between #inelude iostream and #include a- No relation b- conio.h must be…
A:
Q: Reentrancy
A: Introduction: A function is considered re entrant if it can interrupt it while it is running,…
Q: Implement the following Racket functions: Symmetric? Input: a list of pairs, L. Interpreting L…
A: Symmetric: It is defined as, any arrow from one vertex to another will always go along with…
Q: Let S be a set with |S| = 5. How many relations are there on S? А. 5! В. 55 С. 520 D. 525 Е. 225
A: There are E. 225 relations on S.
Q: Give Pros of Using Dynamic Views
A: Answer: A dynamic view is useful, since it provides a way to access part of a table or a…
Q: Write pseudocode for an iterator that implements indexed nested-loop join, where the outer relation…
A: Assume that outer is an iterator that gives the successive tuples from the pipelined outer relation…
Q: Self Study Examples: Try to code listing for the Primary-Foreign key relations of the sets given…
A: Answer: I have done code and also I have attached code and code screenshot as well as output
Q: Consider a view v whose definition references only relation r If a user is granted update…
A: solution : suppose if a view references to only the relation r .It not necessary for a user to have…
Q: Write a Java or PHP program that connects to a MySQL database and fetches all records from the…
A: As per the requirement program is developed in java. Algorithm: Step 1: Write the main method Step…
Q: Q5. If A, B, and C are sets, then show that AnBnC = ĀUBUC by use a membership table. ABCA BC CCUB…
A: In Boolean algebra, The intersection of sets can be defined in terms of the logical “and”…
Q: Given 5 dimensional parameters A, B, C, D, E, F and the following set S of functional dependencies S…
A: The set of functional dependencies are given as follows- S={B→A;C→B;F→E;B→F;F→D}; Let us find the…
Q: has a and is are mutually exclusive relationship in oop true or false
A: Ans: False that has a and is are mutually exclusive relationship in oop.
Q: 5- Give a relational algebra query plan drawn as a tree that correctly computes the following query.…
A: Query Execution Plan A query plan is a series of steps performed by the data base management program…
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: R = ABCD F3{C-D, C-А, В -С } A. Find all candidate keys. B. What is the strongest normal form that…
A: A) Attribute or set of attribute that can determine all the attribute of relation R is key of R.…
Q: Consider a relational scheme R(A,B,C,D,E,H)R(A,B,C,D,E,H) and functional dependencies…
A: Given relational schema is R(A,B,C,D,E,H) Functional dependencies A→B,BC→D,E→C,D→A Candidate key…
Q: If a set A has 7 elements, then the total number of possible relations on A is O 27 27 277 72
A: A set of N elements contains N2 ordered pairs of elements. Total possible relations will be 2N2…
Q: Write a C program that would: - Let the users accept a relation. - Input options should be in…
A: The C language is a computer programming language which was developed to do system programming for…
Q: 3. Give a Z expression for the set of all people ih iblings in the database.
A: Z expressions are used for finding out the particular entries in a database using the regex pattern…
Q: Consider the function f (n) = 3n3 + 2n2 + 10n +5. %3D Select all the possible relations from the…
A: Big O represents the tightest upper bound of the function, Big θ represents the average case time…
Q: Using the functional dependencies of Exercise 7.6, compute the canonicalcover Fc.
A: Using the functional dependencies of Exercise 7.6, compute the canonicalcover Fc. Hence I have found…
Q: A primary index is a non-dense index O True O False
A: The question is to choose if the given statement is true or false.
Q: Consider a schema R, a set F of functional dependencies on R, and two candidate keys (k1, k2) as…
A: Given information: - A schema R, a set of functional dependencies F and two candidate keys (k1, k2)…
Q: Using Referential Integrity Constraint with Cascading option risky from
A:
Q: QUESTION 7 Given S is a set of equivalence classes S={q, t, u, v, w} in relation R. S1={q,t,u} S2=…
A: - We have to check for S if it's a partition or not.
Q: Consider a relational scheme R(A,B,C,D,E,H) and functional dependencies A→B,BC→D,E→C,D→A. Find all…
A: In the functional dependencies above E, H are not present at the right hand side hence a candidate…
Q: In the recurrence relation f(n)=af(n/b)+g(n), the number of subproblems is a. True False
A: Given: We are given a problem where we have the recurrence equation given. f(n) = af(n/b) + g(n)…
Q: 12. Which of the types of indexable data structures allow any hashable data type (basically those…
A: According to the information given:- We have to find which one is the type of indexable data…
Q: What are thescenarios where deadlock can occur specify each?
A: Deadlock will be arise when the below given condition are being fulfilled:
Q: Consider a relational scheme R(A,B,C,D,E,H)R(A,B,C,D,E,H) and functional dependencies…
A: The Answer is
Q: Suppose we define a relation on the set {strings in A} by making aRb + length(a) = length(b) Support…
A: Let first understand what is Equivalence relations ? A relation on set A is called an equivalence…
Q: Given the schema S= , where F represents the following dependencies: AB→D A→D E→B B→H H→C E→C…
A: A functional dependency which refers to the relationship between two attributes and typically which…
Q: Let A is a set defined as A= {1,2,3,4} and R is a relation on A, R is: * O neither equivalent nor…
A: Let A is a set defined as A= (1,2,3,4) and R is a relation onA, Ris: * neither equivalent nor…
Q: Consider a view v whose definition references only relation r If a user is granted select…
A: Suppose if a view references to only the relation r, then it is not necessary for a user to have…
Q: Minimal Superkeys are called Candidate keys explain?
A: Given that, Minimal Superkeys are called Candidate keys.
Q: Consider replacing F by an alternative set of functional dependencies G: AP-> IT I -> ATP Is the…
A: The Answer is in step-2.
Q: Consider the following database in Prolog: birthday(tom). birthday(fred). birthday(helen),…
A: Here I explained Prolog code with proper output. I hope you like it. Use Swish Online Prolog…
Q: Suppose R(A,B,C,D,E) and we have the functional dependencies F= { A->C, C->D, B->C, DE->C, CE->A }
A: Functional Dependency A functional dependency A->B in a relation holds if two tuples having same…
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- Write a copy assignment operator for CarCounter that assigns objToCopy.carCount to the new objects' carCount, then returns *this. Sample output for the given program:Cars counted: 12Suppose that we have created a class called Car by which we have created the objects below: Car herCar = new Car();Car hisCar = new Car(); Car myCar = hisCar;hisCar = null;myCar = herCar;herCar = hisCar; You may find it easier to solve this problem if you use memory model.write a program to show 2 dead objects in student class. Also, call garbage collector using System.gc() to collect dead objects. Call finalize function for each dead object collections
- A for construct is a loop that goes over a list of objects. Consequently, it runs indefinitely if there are items to process. What do you think about this?find the number of ways m+n different objects can be divided into two (indistinguishable) subsets containing m and n objects, respectively. The textbook solution is if m does not equal n: (m+n)!/(m!n!) if m equals n: (2m)!/(2!m!m!) Thanks!Implement a new class that implements Comparatorof GregorianCalendar class to be able sort the calendar in increasingorder based on day, month, and year, in that order. Write a method to displaythe GregorianCalendar instance in “dd-MMM-yyyy” format usingSimpleDateFormatclass. Write a test program with 10 GregorianCalendarinstances and display the results after the sort.
- i need to use this collection in java code about Bank management system public static void object max (collection cl) and I need it as if I make options in amounts, where the user chooses the maximum amount he can transferComplete the method below that prints all elements that are in both Set<String> s and Set<String> t. Each matching element should be followed by a space. What can I change to make it work? import java.util.Set;import java.util.Iterator; public class Sets{ public static void printMatches(Set<String> s, Set<String> t) { System.out.print("{ "); while(in.hasNext()){ String next = in.next(); { if((s.contains(next))&& (t.contains(next))){ System.out.print(next+" "); } } System.out.println("}"); }} import java.util.Set;import java.util.TreeSet;import java.util.Arrays; public class SetsTester{ public static void main(String[] args) { Set<String> set1 = new TreeSet<>(Arrays.asList("Bob", "Bill", "Sally")); Set<String> set2 = new TreeSet<>(Arrays.asList("Sam", "Bob", "Frank")); Sets.printMatches(set1, set2);…Implement the Plates class buildMap function so that it populates the HashMap with the state abbreviations as keys and the counts of how many each appear in the file as values. Sometimes, the parking attendant will add special notation to help her remember something about a specific entry. There are just non alphabetic characters that she adds to the state - your program should ignore these characters so that an entry like NY* still counts toward the NY plate count. She is also very inconsistent with how she enters the plates. Sometimes she uses upper case, sometimes lowercase, and sometimes she even uses a mix. Be sure to account for this in your program. Only add information for plates in New England (Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut). Plates.java import java.util.Arrays; import java.util.HashMap; import java.util.HashSet; import java.util.Map; import java.util.Set; public class Plates { private Map<String, Integer> plateMap;…
- Given an JavaScript object list of books that each have a pages attribute to define the number of pages in the book, find the sum of all the pages in the object list of books using recursion. Keep in mind: The input list object may be completely empty (ex. {}) The next attribute may not be defined function getPageCount(list) {// your code here// returns an integer}Example test case:Input: {"book":"A","pages":1,"next":{"book":"B","pages":2,"next":{"book":"C","pages":3,"next": null}}}Output: 6Reasoning: 1 + 2 + 3 pagesCoupon collector is a classic statisticsproblem with many practical applications. The problem is to repeatedly pickobjects from a set of objects and find out how many picks are needed for all theobjects to be picked at least once. A variation of the problem is to pick cards froma shuffled deck of 52 cards repeatedly, and find out how many picks are neededbefore you see one of each suit. Assume a picked card is placed back in the deck before picking another. Write a program to simulate the number of picks neededto get four cards from each suit and display the four cards picked (it is possible acard may be picked twice). Here is a sample run of the program: Queen of Spades5 of ClubsQueen of Hearts4 of DiamondsNumber of picks: 12a. Write the two static methods to create InetAddress objects.