Course

Introduction to SQL and Databases

In every data job, you’ll not only need to learn how to manipulate data but also how to access it. SQL is one of the most-used domain-specific programming languages for this task. In this course, you’ll learn how to write code and perform fundamental data science tasks using SQL — no previous coding experience is necessary. By the end of this course, you’ll be able to perform simple queries.

Enroll for free

Part of the SQL, and Business Analyst (Power BI) paths.

4.8 (359 reviews)

37,505 learners enrolled in this course.

Beginner friendly
2 hours
Self paced
4 lessons

“Dataquest actually makes you think and apply your skills. You don’t really need to spend $10,000 dollars on a bootcamp.”

Miguel Couto

Big Data Analyst @Zattoo

Introduction to SQL and Databases

Enroll For Free

Course overview

This interactive SQL course for beginners will teach you how to code and perform fundamental data science tasks using SQL — and it will help you begin your journey to become a successful data professional. In this course, you’ll learn how to write data queries and how to use statements and clauses — as well as the critical role of SQL in routine data science tasks. Best of all, you’ll learn by doing — you’ll write code and get feedback directly in the browser. You’ll apply your skills to several guided projects involving real-world scenarios to build your portfolio and prepare for your next interview.

Key skills

Course outline

Introduction to SQL and Databases [4 lessons]

Introduction to SQL 1h

Lesson Objectives

Define SQL programs and queries
Employ the `SELECT` clause
Perform arithmetic in SQL
Pronounce SQL

Introduction to Databases 1h

Lesson Objectives

Define databases
Define metadata
Employ SQL statements and clauses
Employ the `FROM` clause
Extract data from tables
Select specific columns

Exploring Tables 1h

Lesson Objectives

Employ the `LIMIT` clause
Identify the order of execution of clauses
Identify different SQL dialects

Coding with Style 1h

Lesson Objectives

Define database management systems
Employ comments
Define reserved words
Apply style guidelines

The Dataquest guarantee

Dataquest has helped thousands of people start new careers in data. If you put in the work and follow our path, you’ll master data skills and grow your career.

We believe so strongly in our paths that we offer a full satisfaction guarantee. If you complete a career path on Dataquest and aren’t satisfied with your outcome, we’ll give you a refund.

Master skills faster with Dataquest

Go from zero to job-ready

Learn exactly what you need to achieve your goal. Don’t waste time on unrelated lessons.

Build your project portfolio

Build confidence with our in-depth projects, and show off your data skills.

Challenge yourself with exercises

Work with real data from day one with interactive lessons and hands-on exercises.

Showcase your path certification

Share the evidence of your hard work with your network and potential employers.

Grow your career with
Dataquest.

98%

of learners recommend

Dataquest for career advancement

4.85

Dataquest rating

SwitchUp Best Bootcamps

$30k

Average salary boost

for learners who complete a path

Aaron Melton

Business Analyst at Aditi Consulting

“Dataquest starts at the most basic level, so a beginner can understand the concepts. I tried learning to code before, using Codecademy and Coursera. I struggled because I had no background in coding, and I was spending a lot of time Googling. Dataquest helped me actually learn.”

Jessica Ko

Machine Learning Engineer at Twitter

“I liked the interactive environment on Dataquest. The material was clear and well organized. I spent more time practicing then watching videos and it made me want to keep learning.”

Victoria E. Guzik

Associate Data Scientist at Callisto Media

“I really love learning on Dataquest. I looked into a couple of other options and I found that they were much too handhold-y and fill in the blank relative to Dataquest’s method. The projects on Dataquest were key to getting my job. I doubled my income!”