SQL Resources | DatawithLuis

My recommended SQL learning resources

I've consolidated all my recommended SQL learning resources into this page. From beginners to experts, there is something for everyone.

SQL Learning 

Here are my favorite courses and practice websites if you're just getting started with SQL!

SQL Games

These two free SQL games will help you level up your SQL Skills!

SQL Practice Interview Questions

Once you are feeling confident with SQL it's time to start doing practice interview questions! All these websites offer robust catalogs of free questions but also offer a premium membership if you are interested in more practice. 

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How to get started with SQL

I think SQL is the most important tech skill for a Data Analyst to know. It allows you to find and manipulate data without waiting on an IT team or a Data Engineer to find and manipulate data for you. You can watch this video to learn more about why SQL is so important for a Data Analyst.  Below are my favorite FREE  SQL learning resources: SQL for Data Analysis | Free Courses | Udacity : This free course from Udacity covers everything a beginner Data Analyst should know. It covers SQL Basics (SELECT, FROM, WHERE), Joins, Aggregations, Data Cleaning, and Window Functions. It has a mix of video and written lectures along with quizzes to help you master the content. They advertise that it takes about 4 weeks to complete the course, but I think it's completely worth the time investment.  Sololearn: Introduction to SQL : Sololearn offers a great introductory SQL course that covers all the basics from SELECT statements to SQL best practices and creating/deleting tables. I wouldn't
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How to become a Data Analyst

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Data Preparation Practice

I am a huge advocate for hands-on practice when it comes to learning data skills. Whether it's SQL , PowerBI , or Tableau , I will always recommend completing hands-on exercises as part of your learning to become a Data Analyst. As I covered in one of my latest posts  Data Preparation is a crucial skill for data analysts to have in their arsenal, and in this post I will be discussing what I believe to be the best website to practice your data preparation skills, Preppindata.com The website offers a range of challenges and exercises that simulate real-world data scenarios, allowing analysts to practice and refine their data preparation techniques. By providing step-by-step solutions and fostering community discussions, preppindata.com creates an environment for learning and collaboration among data professionals. The platform is important for data analysts because it helps them become more proficient in cleaning, formatting, and transforming raw data, which are critical steps in ens
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