Certification course

Learn SQL.

Name: SQL Certification Course
Brand: w3schools
Price: 95.0 USD
Availability: InStock
Rating: 4.8 (55 reviews)

Learn SQL and start working with data confidently.

4.8 · 874 reviews

$95Exam and certificate included

Full AccessEvery course and exam · $499

14-day money-back guaranteeInstant accessLifetime access

Secure checkout

BeginnerNo experience needed
48 hoursAt your own pace
56 modulesLessons, quizzes, exercises
Exam includedNo need to buy separately
W3Schools Hero1-year subscription included

Our learners work at

What you'll learn

Real SQL skills, step by step.

Everything you need to use SQL with confidence, from the first line to real projects.

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.

Roles you'll be ready for

Data Analyst
Database Administrator
Backend Developer
Data Engineer
Business Analyst
BI Developer
Data Scientist
Software Developer
Reporting Analyst
Financial Analyst
Marketing Analyst
Product Analyst
QA / Test Engineer
Database Developer

Syllabus

Everything the course covers.

9 chapters · 56 modules · 48 hours

01Basics7 modules

SQL Introduction
SQL Syntax
SQL SELECT
SQL SELECT DISTINCT
SQL WHERE
SQL ORDER BY
SQL AND, OR, NOT

02Inserting, updating and deleting5 modules

SQL INSERT INTO
SQL NULL Values
SQL UPDATE
SQL DELETE
SQL SELECT TOP

03Aggregate functions and filters8 modules

Aggregate Functions
SQL MIN and MAX
SQL COUNT, AVG, SUM
SQL LIKE
SQL Wildcards
SQL IN
SQL BETWEEN
SQL Aliases

04Joins7 modules

SQL Joins
SQL INNER JOIN
SQL LEFT JOIN
SQL RIGHT JOIN
SQL FULL JOIN
SQL Self Join
SQL UNION

05Grouping and subqueries9 modules

SQL GROUP BY
SQL HAVING
SQL EXISTS
SQL ANY and ALL
SQL SELECT INTO
SQL INSERT INTO SELECT
SQL CASE
SQL NULL Functions
SQL Stored Procedures

06Comments and operators2 modules

SQL Comments
SQL Operators

07Databases and tables6 modules

SQL Database
SQL Drop DB
SQL Backup DB
SQL CREATE TABLE
SQL Drop Table
SQL Alter Table

08Constraints and indexes7 modules

SQL Constraints
SQL Unique
SQL Primary Key
SQL CHECK Constraint
SQL Default Constraint
SQL Create Index Statement
SQL Auto Increment

09Dates, views, security and hosting5 modules

SQL Dates
SQL Views
SQL Injections
SQL Hosting
SQL Data Types

query.sql

SELECT name, country
FROM customers
WHERE country = 'Norway'
ORDER BY name;

Run ›Result

2 rowsAnna · Norway, Erik · Norway

Every module ends with a Try it Yourself exercise. Write code, run it, see the result.

Your certificate

Become a Certified SQL Developer.

A credential from the site that has taught the web since 1999.

Learn
Lessons, quizzes and exercises. No deadlines.
Pass the exam
Online, multiple choice. 3 attempts, results instantly.
Share it
On LinkedIn and your CV. Employers verify it by link or QR code.

Your score sets your level: Intermediate 40% · Advanced 75% · Professional 90%

Also included

A year of W3Schools Hero subscription.

Keep learning and building long after the exam. Worth $120, included.

Unlimited learning in the app
Full access on iOS and Android. Learn anywhere.
Build with Spaces
Your own space to build, test and deploy real projects.
Ad-free W3Schools
Learn on w3schools.com without ads.
Leaderboard and challenges
Earn XP, keep your streak, compete with other learners.

Reviews

What learners say.

4.8 · 874 reviews

W3 Schools' 'Full Access' plan may be the best learning resource I've ever found. I've read books, followed various online tutorials, and completed university studies on the subjects, but W3 Schools' method is simply superior. Topics a...

Ian B.Verified buyerUnited StatesFull Access
Practicing Python is awesome! I enjoy daily practice and it's so fun!!! W3school to me is a great platform for all Tech people Thank you so much

Samuel A.Verified buyerGhanaPython
Muy buena experiencia. El curso de SQL tiene contenido claro y completo, y el examen de certificación me gustó especialmente por su nivel de dificultad y por combinar conocimientos teóricos y prácticos. Muy recomendable para reforzar y v...

Guille G.Verified buyerArgentinaSQL

Pricing

One course, or all of them.

This course

Learn SQL

$95one-time

The full SQL course
SQL exam and certificate
1 year of W3Schools Hero subscription
Lifetime access

14-day money-back guarantee, as long as no exam attempt is used.

Best value

Full Access

$499one-time

45+ certifications
W3Schools Hero subscription for life
Lifetime access
New courses and exams included as we add them

Get Full Access 14-day money-back guarantee, as long as no exam attempt is used.

Questions? Answers.

Do you have a money-back guarantee?

Yes. If you are not satisfied, you get your money back within 14 days of purchase, as long as no exam attempts are used. Our refund policy.

How fast do I get access?

Instantly. Right after purchase you get an email with access to the course and the exam.

How does the exam work?

The exam is online and multiple choice. You get 3 attempts and choose when to take each one. Your score sets your level: Intermediate (40%), Advanced (75%) or Professional (90%).

Does the certificate expire?

No. The certificate never expires. It is issued in your name and employers can verify it with a unique link or QR code.

What is the difference between the course and the exam?

The course includes lessons, exercises, progress tracking and the exam. If you already know the subject, you can buy the exam only and go straight to certification.

Learn SQL.

Real SQL skills, step by step.

Roles you'll be ready for

Everything the course covers.

Become a Certified SQL Developer.

A year of W3Schools Hero subscription.

What learners say.

One course, or all of them.

Learn SQL

Full Access

Questions? Answers.

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