Which one of the following indexes would you choose to create to improve the runtime of the following SQL query that lists the names of all directors whole directed a film in the 1960s? SELECT D.name FROM Directors D, Film F WHERE F.director = D.id AND F.release_year BETWEEN 1960 AND 1969; O A B+-tree index on Film.release_year O A hash index on Film.release_year O A hash index on (Directors.id, Film.release_year, Directors.name) O A B+-tree index on (Directors.name, Film.release_year) O A bitmap index on Film.release_year

Which one of the following indexes would you choose to create to improve the runtime of the following SQL query that lists the names of all directors whole directed a film in the 1960s? SELECT D.name FROM Directors D, Film F WHERE F.director = D.id AND F.release_year BETWEEN 1960 AND 1969; O A B+-tree index on Film.release_year O A hash index on Film.release_year O A hash index on (Directors.id, Film.release_year, Directors.name) O A B+-tree index on (Directors.name, Film.release_year) O A bitmap index on Film.release_year

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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