Suppose that relations R and S have n tuples and m tuples respectively. What is the minimum number of tuples that the results of the following expression can have? TL(R) - S, for some list of attributes L O A.n O B. n-m O C. max{n,m} O D. n*m O E. min{n,m} O F. m O G. n+m O H. 0

Suppose that relations R and S have n tuples and m tuples respectively. What is the minimum number of tuples that the results of the following expression can have? TL(R) - S, for some list of attributes L O A.n O B. n-m O C. max{n,m} O D. n*m O E. min{n,m} O F. m O G. n+m O H. 0

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

I need the answer as soon as possible
Q5/ Consider the following search space in which the goal is to find the p from S to G, next(S,A,5), next(S,B,2),next(A,G,5), next (B,D,1), next(B,C,2), next (C,G,2), next(D,G,5), where next(X,Y,Z) means that Y is a child of X and the cost of going from X to Y is Z. ho(S)=0, ho(A)=0, ho(B)=0, ho(C)=0, ho(D)=0, ho(G)=0, h₁(S)-5, h₁(A)=3, h₁(B)=4, h₁(C)=2, h₁ (D)=5, h₁(G)=0, h₂(S)-6, h₂(A)=5, h₂(B)=2, h₂(C)=5, h₂(D)=3, h₂(G)=0, - Which of the above heuristic functions ho,h1 and h2 are admissible? - Give the solution of the longest path found by the A algorithm using the admissible heuristic function. Note: showe the solution using paper please
////
Question # 01: Consider the searching problem: Input: A sequence of n numbers A = (a1, a2, a3, an ) a value V. Output: An index i such that v = A[i] or the special value NIL if v does not appear in A. Write pseudocode for linear search, which scans through the sequence, looking for v. Using a loop invariant, prove that your algorithm is correct. Make sure that your loop invariant fulfills the three necessary properties.
Please do not give solution in image format thanku Implement the following recursively using sudo code: Suppose an elevator which is on a floor on n. For this elevator to go from the nth floor to the base(ground) floor, it should go to every floor under the nth floor. Let's consider an elevator on the 4th floor. This elevator 1st comes on the third(3rd) floor. 4th-> 3rd then 3rd-> 2nd then 2->1 and next 1->0(ground floor) The recursive equation defined is F(n)=1+F(n-1)
Select all that apply. Which are the following properties of the Rosenblatt's Perceptron cause it to be difficult to use in the real world? □ It is never guaranteed to converge It only converges for data that is linearly separable It only works for binary classifcation tasks It only works for data that contains more than 2 classes
Translate into English. Let p = "I am studying Java”, q = “It is sunny”, r = “I am at the beach" For "or" indicate inclusive/exclusive in your English language. a. p^q b. rq c.q→ (pv¬r)
1.Consider the set A def = {{}, {{}}, {{{}}}}. If x∈ A, how many elements might x have?
1. Write an algorithm to determine whether a given element x belongs to a set S := {s1, . . . , sn}.
Correct answer will be upvoted else downvoted. Computer science. Michael is blamed for disregarding the social separating rules and making a danger of spreading Covid. He is currently shipped off jail. Fortunately, Michael knows precisely what the jail resembles from within, particularly since it's actual straightforward. The jail can be addressed as a square shape a×b which is partitioned into abdominal muscle cells, each addressing a jail cell, normal sides being the dividers among cells, and sides on the edge being the dividers prompting opportunity. Prior to condemning, Michael can ask his companions among the jail representatives to make (all around stowed away) openings in a portion of the dividers (counting dividers among cells and the furthest dividers). Michael needs to have the option to escape the jail after this, regardless of which cell he is set in. Nonetheless, he likewise needs to break as couple of dividers as could be expected. Your assignment is to discover…
Convert the following NFA to DFA using the subset construction algorithm. Use A, B, C etc to denote your new ordered states. Use Phi (O) if necessary. Σ= {a,b}. Notice that is equivalent to E. Select the correct answer 90 q1 A 92 q4 A b 93 95 96 q7 98
Each sentence should be matched by the correct answer in the list.