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Introduction to SQL

Beginner
4.7+
1,814 reviews
Updated 02/2025
Learn how to create and query relational databases using SQL in just two hours.
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SQLData Manipulation2 hours7 videos24 exercises1,600 XP1,036,879Statement of Accomplishment

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Course Description

Get an Introduction to SQL in Two Hours

Much of the world's raw data—from electronic medical records to customer transaction histories—lives in organized collections of tables called relational databases. Being able to wrangle and extract data from these databases using SQL is an essential skill within the data industry and in increasing demand.

In just two hours, you'll get to know the theory and the practice through bite-sized videos and interactive exercises where you can put your new-found skills to the test.

Learn how Relational Databases are Organized

SQL is an essential language for building and maintaining relational databases, which opens the door to a range of careers in the data industry and beyond. You’ll start this course by covering data organization, tables, and best practices for database construction.

Write Your First SQL Queries

The second half of this course looks at creating SQL queries for selecting data that you need from your database. You’ll have the chance to practice your querying skills before moving on to customizing and saving your results.

Understand the Difference Between PostgreSQL and SQL Server

PostgreSQL and SQL Server are two of the most popular SQL flavors. You’ll finish off this course by looking at the differences, benefits, and applications of each. By the end of the course, you’ll have some hands-on experience in learning SQL and the grounding to start applying it to projects or continue your learning in a more specialized direction.

Prerequisites

There are no prerequisites for this course
1

Relational Databases

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2

Querying

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Introduction to SQL
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*4.7
from 1,814 reviews
83%
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  • khaled a.
    4 days

    great

  • Belinda B.
    4 days

    Very direct, concise, & clear!

  • Pedro H.
    7 days

    Very easy to follow each step, extremely friendly.

  • Edwin N.
    11 days

    I was able to understand and the videos are short so i am not afraid to repeat them one more time

  • Josué H.
    13 days

    The practice environment is perfect! There is no room to get lost as the guidance makes it easy, plus, you're not left wondering how you could apply the knowledge you just acquired, you do it on the spot!

"great"

khaled a.

"Very direct, concise, & clear!"

Belinda B.

"Very easy to follow each step, extremely friendly."

Pedro H.

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