3. An basically Rº above, has a 0 if there isn't an edge from one vertex to another while a 1 indicates the presence of a directed edge. In a transitive closure, the ones and zeroes correspond to between vertices, not just edges. 4. Use Floyd's to get the All Pairs Shortest Distances. Show all 5 D matrices, including Dº: Da POTP a b с d b с с d d D² a b c d a b D¹ a b a b с d D³ a b a JB с b с d U с d d Da b c d а abcd с

3. An basically Rº above, has a 0 if there isn't an edge from one vertex to another while a 1 indicates the presence of a directed edge. In a transitive closure, the ones and zeroes correspond to between vertices, not just edges. 4. Use Floyd's to get the All Pairs Shortest Distances. Show all 5 D matrices, including Dº: Da POTP a b с d b с с d d D² a b c d a b D¹ a b a b с d D³ a b a JB с b с d U с d d Da b c d а abcd с

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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Question

3. An
basically Rº above, has a 0 if there isn't an edge from one vertex
to another while a 1 indicates the presence of a directed edge. In a transitive closure, the ones and
zeroes correspond to
between vertices, not just edges.
4. Use Floyd's to get the All Pairs Shortest Distances. Show all 5 D matrices, including Dº:
Dº a
a
b
с
d
D²
a
b
с
d
a
b
b
с
с
d
d
D¹ a
a
b
с
d
D³
a
с
d
a
O
b
b
с
с
d
d
↑
Dª
a
C
d
a
b
C d

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