UrbanPro

Location Set your Location

Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Learn SQL Server from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

SQL Server > Learn SQL Server > How does SQL Index work?
✕

Search in

How does SQL Index work?

Asked by Last Modified  

1 Answer

Learn SQL Server

Follow 2
Answer

Please enter your answer

IT Professional with 15+ years of experience in IT Industry

An SQL index is like a well-organized index at the back of a book. It helps the database find specific information quickly, just like how you can find a specific topic in a book using the index. There are two main types of indexes: clustered and non-clustered. A clustered index is like an index that's...
read more
An SQL index is like a well-organized index at the back of a book. It helps the database find specific information quickly, just like how you can find a specific topic in a book using the index.

 

There are two main types of indexes: clustered and non-clustered. A clustered index is like an index that's sorted by the book's chapters, while a non-clustered index is like an index sorted by topic.

 

Indexes can be unique, which means no two entries can have the same value, or non-unique, where multiple entries can have the same value.

 

Now, let's talk about how indexes can speed up queries. Imagine you're looking for a specific topic in a book. Without an index, you'd have to read the entire book to find it. But with an index, you can quickly jump to the right page. Similarly, a database can use an index to find the data it needs without having to search through every single row.

 

But remember, indexes can be a double-edged sword. They can speed up queries, but they also take up space and can slow down data modifications. So, it's important to use them wisely and only when necessary.
read less
Comments
Dislike Bookmark

Related Questions

Hi, I'm an automation test engineer and a certified s/w test engineer (CSTE - QAI). I work with databases at a beginner level but I'm planning to master working with databases. I'm interested in taking a certification exam as-well. I am not interested in making a career switch but want to add it to my skill set. Considering my background, what training/certification should I go for? Please also suggest some beginner level certifications that would be helpful for me to add to my skill set.
Should be learn Biggener of Database then Advance Courses in DB.
Kumar
I need your help to choose my career as I have three years of gap between my education. I know SQL. Can anyone tell me should I choose MS SQL server or oracle because I am interested in the database? Which one will be better to learn to get into the IT industry? Please help me! Thank you!
As you are strong and interested in SQL, why not to choose ETL Testing? It has a good career ahead in data projects. To survive in the market, you need both Oracle & SQL Server. Actually, both are almost same but are different products.
Santhosh
My name is Rajesh , working as a Recruiter from past 6 years and thought to change my career into software (development / admin/ testing ) am seeking for some suggestion which technology I need to learn ? Any job after training ? Or where I can get job within 3 months after finishing my training programme- your advices are highly appreciated
Mr rajesh if you want to enter in to software Choose SAP BW AND SAP HANA because BW and HANA rules the all other erp tools next 50 years.it provides rubust reporting tools for quicker decesion of business It very easy to learn
Rajesh
1 0
6
I need a trainer for SQL-Programming in Tirupur Dist-Tamilnadu I need a trainer who knows to speak in Tamil Preferably..
I am from Hyderabad,I am expert in sql server (TSQL and TSQL Programming),I can teach you that no one teach in India if you are fine with normal English let me know.
Murthy

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Why Windows Administration knowledge is required for SQL DBA.
As the RDBMS system runs on the windows server operating system and for most of its function is depended on windows OS. Hence SQL DBA should know the basic windows to review various services, events and...

Meetopus

0 0
0
New Features Worth Exploring in SQL Server 2016
New Features Worth Exploring in SQL Server 2016 There is a lot of buzz around SQL Server 2016. Microsoft announced the release of SQL Server 2016 at the Microsoft Ignite Conference during the first...

Amitava Majumder

0 0
0
History of SQL server
In 1988, Microsoft released its first version of SQL Server. It was designed for the OS/2 platform and was developed jointly by Microsoft and Sybase. During the early 1990s, Microsoft began to develop...

Rahul J Rajesh

0 0
0
How To Minimize The Page Splits In Sqlserver To Improve The Performane Of Database?
How to minimize the page splits in sqlserver to improve the performane of database? Page Splits: A page is 8Kbytes of data which can be index related, data related, large object binary (lob’s)...

Amitava Majumder

1 0
0
Data Integrity in SQL Server
It is often told, data without integrity is just numbers. There are different situations like1. When a user enters data which is not in proper range or invalid2. A wrong DML operation is attempted by...

Pritam Chatterjee

0 0
0

Recommended Articles

Why Should you Learn Microsoft Office

Microsoft Office is a very popular tool amongst students and C-Suite. Today, approximately 1.2 billion people across 140 countries use the office programme. It is used at home, schools and offices on a daily basis for organizing, handling and presenting data and information. Microsoft Office Suite offers programs that can...

Read full article >

Learn Microsoft Excel

Microsoft Excel is an electronic spreadsheet tool which is commonly used for financial and statistical data processing. It has been developed by Microsoft and forms a major component of the widely used Microsoft Office. From individual users to the top IT companies, Excel is used worldwide. Excel is one of the most important...

Read full article >

What is Applications Engineering all about?

Applications engineering is a hot trend in the current IT market.  An applications engineer is responsible for designing and application of technology products relating to various aspects of computing. To accomplish this, he/she has to work collaboratively with the company’s manufacturing, marketing, sales, and customer...

Read full article >

Make a Career in Mobile Application Programming

Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...

Read full article >

Find SQL Server Training near you
SQL Server Training in Bangalore
SQL Server Training in Hyderabad
SQL Server Training in Delhi
SQL Server Training in Chennai
SQL Server Training in Pune
SQL Server Training in Mumbai
SQL Server Training in Gurgaon
SQL Server Training in Noida
SQL Server Training in Kolkata
SQL Server Training in Ghaziabad

Looking for SQL Server Training?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for SQL Server Classes?

The best tutors for SQL Server Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn SQL Server with the Best Tutors

The best Tutors for SQL Server Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2024All Rights Reserved