E4.8a Depict full key functional dependencies, partial functional dependencies (if any), and transitive functional dependencies (if any) in the LANGUAGE SCHOOL Table. Use Visio.
Q: Define Completeness constraint?
A: The answer is given below:
Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…
A: Given: {AB->C, BC->D, CD->E, E->F}
Q: Which of the followings can possibly be a canonical cover Fc of a set F of functional dependencies?…
A: The answer to this question is option b) {A → D, AB → C, D → B} and d) {A → C, D → B, AB → C}
Q: Consider the information of following activities - Activity Duration Predecessors A. 9 8. 4 A, B D A…
A: Below table for full solution:
Q: Let relations r1(A, B, C) and r2(C, D, E) have the following properties: r1 has20,000 tuples, r2 has…
A: Block nested-loop join: The “r1” needs (20000/25)=800 blocks and “r2” needs (45000/30)=1500 blocks.…
Q: Given the functional dependency (A, B) C and BCthen it is true that AC O True O False
A: It is False
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: Consider the relations Courses1. Courses2, Enrollment and Students. Enrollment sid cid 101 Al 102 AS…
A: As per the answering guidelines solving the first 3 sub question completely. 1) Here selection…
Q: QUESTION 2: Design and implement design patten that can be used to create a counter to provide…
A: We can make a Sequence Generator reusable, and use it in multiple mappings. We might reuse a…
Q: If P is the primary key of schema R, we must have P -> R. True or
A: If P is the primary key of schema R, we must have P -> R. --> True
Q: Is the following statement regarding the triviality of functional dependencies true or false? α → β…
A: Actually, functional dependency is a relationship that exists between two attributes. It typically…
Q: Given fig3. below and its functional dependencies, FD1, FD2, FD3, r(R) ABCDEFJKM fig3.) FD1 FD2 FD3…
A: Please give positive ratings for my efforts. Thanks. ANSWER Here, We find the candidate key.…
Q: Suppose you are a manufacturer of product ABCD, which is composed of parts AAAA, BBBB, CCCC and…
A: A relational database consists of tables to store data. A table consists of rows and columns to…
Q: commitment
A: Cisco Packet Tracer as the name suggests, is a tool built by Cisco. This tool provides a network…
Q: QUESTION 6 Consider the following database schema for a library. Book (BooklD:int,…
A: The answer is True.
Q: What is the use of having a signature in a transactional structure such as question 1? Suppose a…
A: Agreements, exchanges, and the records of them are among the characterizing structures in our…
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 FDs F and the two candidate keys (k1, k2) are shown below:…
Q: In the arc implementation of the super- and sub-type entities, which one of the following is false?…
A: Given: In the The primary key of each table for each category of object will be its own UID, if one…
Q: Examine the below loop and find the true dependencies, output dependencies and anti dependences.…
A:
Q: Given the relation R(C, D, E, F) and functional dependency: C-> DF Which of the following functional…
A: Answer to the above question is in step2.
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…
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A: As per the requirement program is developed in java. Algorithm: Step 1: Write the main method Step…
Q: Suppose we want to develop a browser-based training system to help people prepare for such a…
A: Case use:- Include a hint for a hint. Main performer:- Customer. Secondary players:- Tutor,…
Q: Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B)…
A: See solution in step No 2
Q: Consider a example program that has the following properties. • The program is called exam1l. • exam…
A: The answer to the above question is given below:
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: Give two common methods for expressing a schema?
A: Flight(flight-number, date, time, price) is one schema, for Flight database. Example of Creating…
Q: a ->f ab -> cd C->e de -> b bf -> ae a) Identify the weakest normal form that each of these…
A: A) Primary key is ab. The functional dependency a->f is a partial functional dependency. It…
Q: Consider a schema R = {A,B,C,D,E}and the following set of functional dependencies: {AD->B,…
A: If there is any relation R and we have to check whether the relation is in Boyce–Codd Normal Form…
Q: set serveroutput on c_id CUSTOMER.cust_id%Type; t TOWNHOUSE.house_num%Type; m_name…
A: direct full answer given in step 2
Q: Consider the following table. Identify and explain the dependency of this table as well as remove…
A: dependency happens when one or more object of a table is dependent on other tables object. In the…
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: Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B)…
A: As per our guidelines, we are supposed to answer only 1st three parts. Kindly repost the remaining…
Q: Suppose we have a relational database with five tables. table key Attributes…
A: As per our guidelines, we are supposed to answer only 1st three parts. Kindly repost the remaining…
Q: Generate a set of relations and functional dependencies which IS in BCNF, but IS NOT dependency…
A: I am going to give example of a relation which will be in BCNF and it will a lossless decomposition…
Q: The next best alternate after BCNF is 3NF. We can say that this schema is 3NF but not BCNF. Match…
A: The answer has given
Q: c. For a schema R (A, B, C, D) bearing FDs F={A B, B + C, C + D, D + A}, find if the decomposition…
A: for dependency preserving, F1 U F2 = F where F1 is the functional dependency of R1 F2 is the…
Q: Consider a schema ? = {?,?,?,?,?} and the following set of functional dependencies: {?? → ?, ? → ??,…
A: Finding if the relation is in BCNF or notFor finding if the relation is in BCNF or not then it must…
Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the…
A: ANSWER OF THE GIVEN QUESTION: Functional Dependency (FD) is a requirement that decides the…
Q: Consider R1(A, B, C, D) with the above functional dependencies. What would be a candidate key for…
A: The complete answer is given below
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 schema(R, F), where R=ABCDE, F={D→EB, E→A, AC→D, BD→E} Decompose the schema into a set…
A: Each table cell should contain a single value.Each record needs to be unique.In 1NF , a cell…
Q: Define Working Set. What is the context? What are consequences of incorrect working sets?…
A: Working set: The working set of a process of the set of pages in the virtual address space of the…
Q: Give proper justification what do you think about data hiding,dsta encspsulation,and data binding?
A: Data hiding Data hiding _concern about data security along with hiding complexity. Data Hiding…
Q: For each of the functional dependencies listed below, indicate whether it holds or not. If it holds,…
A: B -> A fails: tuples 1, 2C -> A fails: tuples 1, 3A -> B fails: tuples 1, 2C -> B fails:…
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: What is the average case of the BST ,pre,in,post order ?
A: Given: What is the average case of the BST ,pre,in,post order ?
Q: Given the business rule "An employee may have many degrees." Suppose that an employee has the…
A: EXPLANATION Below is the answer for the given question. Hope you understand it well. If you have any…
E4.8a Depict full key functional dependencies, partial functional dependencies (if any), and transitive functional dependencies (if any) in the LANGUAGE SCHOOL Table. Use Visio.
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- Using explicit cursors write an anonymous block that displays the names of the shoppers followed by the names of the products that they have shopped. You will find this information in the bb_shopper(shopper name), bb_product (product name), bb_basket and bb_basketitem tables. It is fine if some of the product names are repeated in the output, this is because the shopper has brought an item more than once..Stacks are useful in situations where: (There maybe more then one answer) A. a higher priority element can postpone the processing of a lower priority element. B. we must deal with postponed obligations. C. items are processed in LIFO order. D. decisions are made on a tentative basis.WRITE THE CODE IN PLSQL 1.You have a table AUDITORIUMS with nested table which represents the classes that take place in that auditorium: a. Auditorium number b. Class CLASS_TYPE_TABLE c. Max people allowed to be in auditorium Check, if class with parameters ("Databases", DSP101) is registered in auditorium 405!
- What is a bridge/"junction" table? What is the alternative to it? Why is it (the alternative) less 'palatable'?Part 1: autocomplete term. Write an immutable data type Term.java that represents an autocomplete term-a query string and an associated integer weight. You must implement the following API, which supports comparing terms by three different orders: lexicographic order by query string (the natural order); in descending order by weight (an alternate order); and lexicographic order by query string but using only the first r characters (a family of alternate orderings). The last order may seem a bit odd, but you will use it in Part 3 to find all query strings that start with a given prefix (of length r). public class Term implements Comparable { // Initializes a term with the given query string and weight. public Term (String query, long weight) // Compares the two terms in descending order by weight. public static Comparator byReverseWeight0rder () // Compares the two terms in lexicographic order, // but using only the first r characters of each query. public static Comparator…Create an Ordered Doubly Linked List in C++. Remember that an ordered Linked List is one where inserts automatically place a new node so that all the nodes retain a certain order. This list should be templated where items should be in "ascending" order (i.e., if it is a list of numbers, it should be of order of least to greatest).
- Create a nfa for L = {w ∈ {a, b}∗|w begins and ends with different letters.}List the function of group accessors. ?def update_task(task_list, task_id, task_field, task_update): """ Given * the task list (`task_list`) * the task index that has been selected (`task_id`) * the field of the selected task (`task_field`) * the updated information (`task_update`) Validate the parameters to check for syntax and structure. If all validations passed, return a tuple with a boolean True and the updated task (a dictionary from the `task_list` at the provided `task_id`). Ff validations fail, return a tuple with a boolean False and a string with the task_field that caused the error during validation. """ task_list = input() task_id = input() task_field = input() task_update = input() if task_id is is_valid_index(): if (task_field is in task_list.item()): return True , task_list(task_id) else: return (False , "field") else: return (False, "idx") fields = [ 'name', 'description', 'deadline',…
- An invoice (or an order) contains a collection of purchased items or (order items). Should that collection be implemented using a list or a dictionary? Explain your answer fully.Best Practices to Follow: It’s worth breaking up each functional task in create_blackjack_game() into separate functions. For example, a function to check the score of a player’s hand, to check whether a player has won, and so on. This entire implementation can be done neatly in about eight functions. Create a Deck of Cards Complete the create_standard_deck() function, which creates a new deck. The deck itself must be a data structure list. The cards within the deck must be represented as tuples of the form (suit, number), where the suit is a string that must be either ‘hearts’, ‘clubs’, ‘spades’, or ‘diamonds’, and the number is an integer that must be one of the following: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14. Note that the number used to identify the card has the following association: Jack = 11, Queen = 12, King = 13, and Ace = 14. In terms of value, the picture cards (Jack, Queen, and King) all have a value of 10, and the Ace card has a value of 11. The casino only wants…My homework was to design and implement a simple social network program in Java. I should use an adjacency matrix data structure in my implementation. Write a social network program in Java. The default information for this network is stored in two files: index.txt and friend.txt. The file index.txt stores the names of the people in the network – you may assume that we only store the given names and these names are unique; and friend.txt stores who knows whom. The program must read these two files. The following section describes the format of these two files. The friend.txt takes the following format. The first line is the number of pairs of friends. Each subsequent line has two integer numbers. The first two numbers are the indices of the names. The following is an example of friend.txt:50 31 30 12 41 5 The index.txt stores the names of the people in the network. The first line is the number of people in the file; for example:60 Gromit1 Gwendolyn2 Le-Spiderman3 Wallace4 Batman5…