Menu
×
   ❮     
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP HOW TO W3.CSS C C++ C# BOOTSTRAP REACT MYSQL JQUERY EXCEL XML DJANGO NUMPY PANDAS NODEJS R TYPESCRIPT ANGULAR GIT POSTGRESQL MONGODB ASP AI GO KOTLIN SASS VUE DSA GEN AI SCIPY AWS CYBERSECURITY DATA SCIENCE
     ❯   

SQL Tutorial

SQL HOME SQL Intro SQL Syntax SQL Select SQL Select Distinct SQL Where SQL Order By SQL And SQL Or SQL Not SQL Insert Into SQL Null Values SQL Update SQL Delete SQL Select Top SQL Aggregate Functions SQL Min and Max SQL Count SQL Sum SQL Avg SQL Like SQL Wildcards SQL In SQL Between SQL Aliases SQL Joins SQL Inner Join SQL Left Join SQL Right Join SQL Full Join SQL Self Join SQL Union SQL Group By SQL Having SQL Exists SQL Any, All SQL Select Into SQL Insert Into Select SQL Case SQL Null Functions SQL Stored Procedures SQL Comments SQL Operators

SQL Database

SQL Create DB SQL Drop DB SQL Backup DB SQL Create Table SQL Drop Table SQL Alter Table SQL Constraints SQL Not Null SQL Unique SQL Primary Key SQL Foreign Key SQL Check SQL Default SQL Index SQL Auto Increment SQL Dates SQL Views SQL Injection SQL Hosting SQL Data Types

SQL References

SQL Keywords MySQL Functions SQL Server Functions MS Access Functions SQL Quick Ref

SQL Examples

SQL Examples SQL Editor SQL Quiz SQL Exercises SQL Server SQL Syllabus SQL Study Plan SQL Bootcamp SQL Certificate

SQL Syllabus


Introduction

The W3Schools SQL Tutorial is comprehensive and beginner-friendly.

It will give you a fundamental knowledge of SQL.

It is designed for beginners and requires no prior experience with programming.

The content has been carefully made to be bite-sized, simple, and easy to understand.

The content has been proven by millions of users over the years. It is updated and improved frequently.

The syllabus outline and its sequence are structured so you can learn SQL step by step, from the introduction to creating your first application with SQL.

Get Started With SQL »


Learning Outcomes

  • Understand what SQL is and why you would use it.
  • Create and manage databases and tables.
  • Insert, update, and delete data in tables.
  • Use SELECT with filters (WHERE) and sorting (ORDER BY) to get data.
  • Use JOIN to combine data from multiple tables.
  • Use functions like SUM, AVG, and COUNT to group data and add them up.
  • Create table relationships with foreign keys.
  • Use SQL functions like MIN, MAX, and COUNT.
  • Understand subqueries and indexes.
  • Manage user permissions and data security.

Note: Are you a teacher teaching SQL? W3Schools Academy is a toolbox of features that can help you teach. It offers classroom features such as pre-built study plans, classroom administration and much more. Read more about Academy here.


Which Subjects Are SQL Relevant For?

  • Information Technology (IT):
    SQL is used to run and manage databases and IT systems.
  • Computer Science (CS):
    Learn database management and data structures.
  • Data Science:
    SQL is foundational for data analysis and handling of big data.
  • Mathematics:
    Organize and analyze data.
  • Business and Management:
    SQL supports reporting and data-driven decision making.
  • Economics and Finance:
    Pulling raw data from databases. Financial data management, reporting, and risk analysis.
  • Statistics:
    Collecting and processing of large data sets.
  • Science (Biology, Chemistry, and more):
    Handling, research, and analysis of experimental data.
  • Retail and E-commerce:
    Analysis of inventory, supply chain management, and sales. Customer database management.
  • Other (Healthcare, Education, Engineering):
    User record systems, data analysis, quality control, and data monitoring.
  • SQL is a language that is essential in any subject working with data.

Get Started


Activities

In this tutorial we offer different activities for you to learn SQL for free:


Sign in to Track Progress

You can also create a free account to track your progress.

As a signed-in user, you get access to features such as:

  • Learning paths
  • Sandbox and lab environments
  • Achievements
  • And much more!

Sign Up - It's free


Overview of the Modules

Get Started


Sandbox and Lab Environment

SQL, like any other coding language, is best learned by working hands-on with code.

With our online SQL editor, you can edit the SQL statements, and view the result in your browser:

Example

SELECT * FROM Customers;
Try it Yourself »

If you want to explore more and host your project, we have a feature called Spaces that allows you to build, test and deploy static websites for free.

Here you get a secure sandbox environment called Spaces, where you can practice coding and test projects in real-time.

Spaces allow you to test, build, and deploy code. This includes a W3Schools subdomain, hosting, and secure SSL certificates.

Spaces require no installation and run directly in the browser.

Features include:

  • Collaboration
  • File navigator
  • Terminal & log
  • Package manager
  • Database
  • Environment manager
  • Analytics
Dynamic Spaces

Create a Spaces Account


SQL Certification

W3Schools offers an end-of-pathway certification program.

Here you can take exams to get certified.

The SQL exam is a test that summarizes the W3Schools SQL syllabus.

After passing the exam you get the "Certified SQL Developer" Certification.

There are two different types of certifications:

  • Non-adaptive
  • Adaptive

The non-adaptive is pass or no pass.

The adaptive certification is adaptive and graded; students will get a grade from intermediate, advanced to professional.

Buy Certificate »


Are You a Teacher?

Are you interested in learning how you can use W3Schools Academy to Teach SQL?

Join our upcoming webinar for a guided demo of W3Schools Academy. You'll see how it works, and discover how it can make teaching programming easier and more engaging.

Join our FREE Webinar »


×

Contact Sales

If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail:
sales@w3schools.com

Report Error

If you want to report an error, or if you want to make a suggestion, send us an e-mail:
help@w3schools.com

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use, cookie and privacy policy.

Copyright 1999-2024 by Refsnes Data. All Rights Reserved. W3Schools is Powered by W3.CSS.