Question: Consider the relations r 1 ( A , B , C ) , r 2 ( C , D , E ) , and r

Consider the relations r1(A,B,C), r2(C,D,E), and r3(E,F), with primary keys A, C,andE, respectively. Assume that r1 has 1000 tuples, r2 has 1500 tuples, and r3 has 750 tuples. Estimate the size of r1 r2 r3, and give an efficient strategy for computing the join.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

Q:

dd the ends to the relations on the Crows Foot ERD for the business rules of the XYZ Company's motor pool ( a motor pool typically is a group of vehicles that are temporary assigned to employees to...

Q:

Change the program AirlineDriver.java to assign passenger seats in an airplane. public class AirlineDriver { public static void main (String[] args) { char [][] layout = { {'A', 'B','C','D'}, {'A',...

Q:

1. The Apriori algorithm uses a generate-and-count strategy for finding frequent itemsets. Candidate generation: candidate itemsets of size k+1 are created by merging a pair of frequent itemsets of...

Q:

help please show clear and detailed solution thank you ill give upvote 1- Sketch the curve with the given polar equation. a. r = 1 c030 b. r = 4sin36 2. Find a polar equation for the curve...

Q:

Complete a StringList class that will behave like ArrayList but will only store String objects. Code structure below. public class StringList { /** * TODO: Declare private data members including an...

Q:

Consider the hypothetical reaction 2 A + B 2 C + D. The following two-step mechanism is proposed for the reaction: Step 1: A + B C + X Step 2: A + X C + D X is an unstable intermediate. (a) What...

Q:

In which scatter plot is r= - 1? (A) ... (B) ... .. . (C) .. .. (D) (E) . .... (F) The graph ( ) shows a scatter plot with a correlation coefficient of r = - 1. (Type A, B, C, D, E, or F.)

Q:

1) a) b) c) d) 2) a) b) c) d) 3) a) b) Select the most appropriate alternative from those given below each statement and write your answer in the box provided. Imagine a hypothetical situation...

Q:

a) b) d) 4) a) TATO 5) a) 2) A ready process can move to the running state 3) A blocked process can move to the running state directly. 4) A blocked process can move to the ready state. Which of the...

Q:

Consider the following $1,000 par value zero-coupon bonds: Bond Years to Maturity YTM (%) 6.3% A B 7.3 7.8 8.3 OnE: D 1 Bond B C D 2 3 According to the expectations hypothesis, what is the market's...

Q:

Given the following Data: X=. 0. 1. 2. 3. 4 P(x) = 0.249 0.307 0.072 0.138 0.159 Is this a Probability Distribution? If so, find the Mean () and the Standard deviation (). If this is not a...

Q:

What is the IRR of a project that costs $45,000 if it is expected to generate $15,047 per year for five years?

Q:

Problem 1 0 - 1 1 Refer to the highest and best use analysis in table below. \ table [ [ , ( b ) ( r - g ) ,

Q:

Vertical integration is the business arrangement in which a company controls different stages along the supply chain. True False