Provide a short answer to the following questions. (a) Draw the graph, given by the following formal definition: G = (V, A) V = {a, b, c, d, e} A = {(a, c), (b, c), (c, a), (c, d), (d, b), (d, e), (e, a), (b, a)} (b) What is one quality that all trees exhibit, that graphs, in general, do not? (c) What is hashing good for? (d) What is the result (table) of the following join operation: Col1 Col2 Col3 Col4 Col5 SELECT Col1, Col3, Col5 A 10 D 12 XY FROM T1, T2 12 E 8 YZ WHERE T1.Col2 = T2.Col4 8 F 9 WX T1 T2 B.
Provide a short answer to the following questions. (a) Draw the graph, given by the following formal definition: G = (V, A) V = {a, b, c, d, e} A = {(a, c), (b, c), (c, a), (c, d), (d, b), (d, e), (e, a), (b, a)} (b) What is one quality that all trees exhibit, that graphs, in general, do not? (c) What is hashing good for? (d) What is the result (table) of the following join operation: Col1 Col2 Col3 Col4 Col5 SELECT Col1, Col3, Col5 A 10 D 12 XY FROM T1, T2 12 E 8 YZ WHERE T1.Col2 = T2.Col4 8 F 9 WX T1 T2 B.
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
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PLEASE ANSWER ALL QUESTIONS AND SHOW AND EXPLAIN STEPS THANK YOU. PLEASE I NEED THIS ASAP.
Transcribed Image Text:Provide a short answer to the following questions.
(a) Draw the graph, given by the following formal definition:
G = (V, A)
V = {a, b, c, d, e}
A = {(a, c), (b, c), (c, a), (c, d), (d, b), (d, e), (e, a), (b, a)}
(b) What is one quality that all trees exhibit, that graphs, in general, do not?
(c) What is hashing good for?
(d) What is the result (table) of the following join operation:
Col1
Col2
Col3
Col4
Col5
SELECT Col1, Col3, Col5
A
10
D
12
XY
FROM T1, T2
12
E
8
YZ
WHERE T1.Col2 = T2.Col4
8
F
9
WX
T1
T2
B.
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