Question 6 Consider the following table schema: CREATE TABLE members( member_id INT, first_name VARCHAR2 (100) NOT NULL, last_name VARCHAR2 (100) NOT NULL, gender CHAR (1) NOT NULL, DOBYear Number NOT NULL, email VARCHAR2 (255) NOT NULL, PRIMARY KEY (member_id) ) ; For the following query on the above table: select max (DOBYear) from members m where gender='F'; Identify for which column you will create indexes to make the above query more efficient? What type of indexes you will create? Give SQL for creating these indexes. Give reason for your answers where ever it is appropriate.

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
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Question 6
Consider the following table schema:
CREATE TABLE members (
member_id INT,
first_name VARCHAR2 (100) NOT NULL,
last name VARCHAR2 (100) NOT NULL,
gender CHAR (1) NOT NULL,
DOBYear Number NOT NULL,
email VARCHAR2 (255) NOT NULL,
PRIMARY KEY (member_id)
) ;
For the following query on the above table:
select max (DOBYear) from members m where gender='F';
Identify for which column you will create indexes to make the above
query more efficient? What type of indexes you will create? Give SQL for
creating these indexes.
Give reason for your answers where ever it is appropriate.
Transcribed Image Text:Question 6 Consider the following table schema: CREATE TABLE members ( member_id INT, first_name VARCHAR2 (100) NOT NULL, last name VARCHAR2 (100) NOT NULL, gender CHAR (1) NOT NULL, DOBYear Number NOT NULL, email VARCHAR2 (255) NOT NULL, PRIMARY KEY (member_id) ) ; For the following query on the above table: select max (DOBYear) from members m where gender='F'; Identify for which column you will create indexes to make the above query more efficient? What type of indexes you will create? Give SQL for creating these indexes. Give reason for your answers where ever it is appropriate.
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