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The following query is run twice: "SELECT * FROM City WHERE population = 50"; The second time the query runs, it will have better performance because the Dynamic B+ Tree index structure is already in memory. True False The following is a good database oriented requirement "A section on iLearn shall be allowed to be accessed by at least one user with read and execute permissions only" True False

The following query is run twice: "SELECT * FROM City WHERE population = 50"; The second time the query runs, it will have better performance because the Dynamic B+ Tree index structure is already in memory. True False The following is a good database oriented requirement "A section on iLearn shall be allowed to be accessed by at least one user with read and execute permissions only" True False

Database System Concepts
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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The following query is run twice: "SELECT * FROM City WHERE population = 50"; The second time the query runs, it will have better performance because the Dynamic B+ Tree index structure is already in memory. True False The following is a good database oriented requirement "A section on iLearn shall be allowed to be accessed by at least one user with read and execute permissions only" True False
Transcribed Image Text:The following query is run twice: "SELECT * FROM City WHERE population = 50"; The second time the query runs, it will have better performance because the Dynamic B+ Tree index structure is already in memory. True False The following is a good database oriented requirement "A section on iLearn shall be allowed to be accessed by at least one user with read and execute permissions only" True False
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