Skip to main content
HomeSQL

Course

Joining Data in SQL

BasicSkill Level
4.8+
8,132 reviews
Updated 09/2024
Level up your SQL knowledge and learn to join tables together, apply relational set theory, and work with subqueries.
Start Course for Free

Included withPremium or Teams

SQLData Manipulation4 hr14 videos47 Exercises3,950 XP242,428Statement of Accomplishment

Create Your Free Account

or

By continuing, you accept our Terms of Use, our Privacy Policy and that your data is stored in the USA.
Group

Training 2 or more people?

Try DataCamp for Business

Loved by learners at thousands of companies

Course Description

Joining data is an essential skill in data analysis, enabling you to draw information from separate tables together into a single, meaningful set of results. In this comprehensive course on joining data, you'll delve into the intricacies of table joins and relational set theory, learning how to optimize your queries for efficient data retrieval.

Understand Data Joining Fundamentals

You will learn how to work with multiple tables in SQL by navigating and extracting data from various tables within a SQL database using various join types, including inner joins, outer joins, and cross joins. With practice, you'll gain the knowledge of how to select the appropriate join method.

Explore Advanced Data Manipulation Techniques

Next up, you'll explore set theory principles such as unions, intersects, and except clauses, as well as discover the power of nested queries in SQL. Every step is accompanied by exercises and opportunities to apply the theory and grow your confidence in SQL.

Prerequisites

Intermediate SQL
1

Introducing Inner Joins

Start Chapter
2

Outer Joins, Cross Joins and Self Joins

Start Chapter
3

Set Theory for SQL Joins

Start Chapter
4

Subqueries

Start Chapter
Joining Data in SQL
Course
Complete

Earn Statement of Accomplishment

Add this credential to your LinkedIn profile, resume, or CV
Share it on social media and in your performance review

Included withPremium or Teams

Enroll Now

Don’t just take our word for it

*4.8
from 8,132 reviews
83%
15%
1%
0%
0%
  • Marina
    31 minutes

  • hossam
    about 2 hours

  • Martim
    about 3 hours

  • Paul
    about 3 hours

    Great overview of joins, with sufficiently challenging questions to test your knowledge along the way. Of particular help was the way that the different join types were explained through visualizations.

  • Bao
    about 4 hours

  • Niklas
    about 5 hours

Marina

Martim

Bao

FAQs

    Join over 17 million learners and start Joining Data in SQL today!

    Create Your Free Account

    or

    By continuing, you accept our Terms of Use, our Privacy Policy and that your data is stored in the USA.