Course

Combining Tables in SQL Course

In this course, you’ll learn how to combine data from multiple tables using SQL

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

4.8 (359 reviews)

7,198 learners enrolled in this course.

Intermediate friendly
3 hours
Self paced
4 lessons

“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.”

Victoria E. Guzik

Associate Data Scientist

Combining Tables in SQL Course

Enroll For Free

Course overview

Joins in SQL allow you to combine datasets from multiple tables using a single query. In this course, you’ll learn how joins work, how to combine data from more than one table using inner joins, how to select columns from different tables, and how to alias tables.

Best of all, you’ll learn by doing — you’ll practice and get feedback directly in the browser.

Key skills

Combining tables using inner joins
Employing different types of joins
Employing other SQL clauses with joins
Employing set operators like UNION and EXCEPT

Course outline

Combining Tables in SQL Course [4 lessons]

Introduction to Joins 1h

Lesson Objectives

Combine data from more than one table using inner joins
Define joins work
Select columns from different tables
Alias tables

Joins and Other Clauses 1h

Lesson Objectives

Join more than two tables
Identify how joins interplay with other clauses

Less Common Joins 2h

Lesson Objectives

Define self-joins
Join tables on complex conditions
Define right and full joins
Employ cross joins

Set Operators 1h

Lesson Objectives

Stack tables
Keep rows in two tables
Keep rows that are in one table and not in another

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

Impress employers by completing a capstone project and certifying it with an expert review.

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Business Analyst at Aditi Consulting

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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.”