How to use index in select statement

0 votes
Let's imagine I established an index (idx name) on the emp name column of the employee database. Does the index name have to be specified directly in the select clause or will it be used automatically to speed up queries?

What is the syntax for utilizing an index in a select query if it must be mentioned in the select clause?
Aug 30, 2022 in Database by Kithuzzz
• 38,010 points
359 views

No answer to this question. Be the first to respond.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

Related Questions In Database

0 votes
2 answers

How to select the nth row in a SQL database table?

SELECT * FROM ( SELECT ID, NAME, ROW_NUMBER() ...READ MORE

answered Apr 23, 2020 in Database by anand
• 140 points
25,569 views
0 votes
1 answer

How to generate the statement CREATE TABLE for an existing table in postgreSQL?

Generate table creation statement for an existing ...READ MORE

answered Feb 9, 2022 in Database by Neha
• 9,060 points
6,292 views
0 votes
1 answer

How do I perform an IF THEN statement in an SQL SELECT?

The CASE statement is the closest to IF in ...READ MORE

answered Feb 16, 2022 in Database by Vaani
• 7,060 points
1,415 views
0 votes
0 answers

How would I use excel to generate a large update sql statement?

I know there's a way to have ...READ MORE

Mar 30, 2022 in Database by Edureka
• 13,670 points
2,083 views
0 votes
0 answers

How to update two tables in one statement in SQL Server 2005?

In one operation, I want to update ...READ MORE

Aug 20, 2022 in Database by Kithuzzz
• 38,010 points
514 views
0 votes
0 answers

How to select the last record of a table in SQL?

Here is an example of code that ...READ MORE

Aug 23, 2022 in Database by Kithuzzz
• 38,010 points
916 views
0 votes
1 answer

What is a covered Index?

A covering index is an index that contains all ...READ MORE

answered Oct 10, 2018 in Database by Frankie
• 9,830 points
671 views
0 votes
1 answer

How to connect Java program to the MySQL database?

You can connect your Java code with ...READ MORE

answered May 11, 2018 in Java by Parth
• 4,630 points
1,760 views
0 votes
1 answer

Is SELECT * harmful in Database?

There are really three major reasons: Inefficiency in ...READ MORE

answered Sep 7, 2018 in Database by DataKing99
• 8,240 points
709 views
0 votes
1 answer

Difference between single and double quotes in SQL

Single quotes are used to indicate the ...READ MORE

answered Sep 11, 2018 in Database by CodingByHeart77
• 3,740 points
29,060 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP