There’s no need to spend a lot of money on SQL training. There are numerous free online resources available to teach newcomers everything they need to know about SQL. Here are the top seven free SQL learning tools.
- Udacity: The “Intro to Relational Databases” video course from Udacity is jam-packed with SQL tutorials. The course uses a series of video sessions to educate beginner and intermediate topics, preparing learners for a variety of SQL applications. Learners must complete coding assignments in their own runtime settings because the course does not contain interactive code assessments. This course is designed for individuals who prefer video education.
- SQLBolt: SQLBolt includes easy-to-follow training, a simple UI, and interactive tasks to teach basic SQL concepts. SQLBolt, unlike many other tutorials, mixes written explanations with code samples to provide students with a deeper and more thorough knowledge of SQL. SQLBolt is an excellent compromise between code-only lectures and extremely technical seminars. This resource should be used by learners who benefit from text-based explanations combined with traditional exercises.
- SQL for Web Nerds: MIT Professor Philip Greenspun developed SQL for Web Nerds, a comprehensive resource that demystifies the technical nitty-gritty of SQL in a clear and simple manner. The site’s skilled content compensates for its lack of a flashy appearance. Greenspun’s resource includes thorough but quick introductions of SQL topics, but no interactive coding tasks. To take their skills to the next level, learners can combine this resource with the interactive coding sessions already described.
- Khan Academy: “Intro to SQL: Querying and Managing Data” from Khan Academy blends video lectures with interactive coding activities to create a course that combines the best of both worlds. The video tutorials are shot at the command-line level, with principles being shown directly in the code. The educational content is enhanced by regular coding problems in a variety of problem sets. Students who want to learn through amazing images and interactive code problems should take this course.
- Codecademy: Codecademy, a leading educational coding site, offers a free SQL course. The course is composed of a series of interactive coding tutorials that progress students from basic functionality to a variety of long-form projects. Codecademy’s enormous variety of activities, as well as the service’s user-friendly design, make for an enjoyable learning experience. Recommended for those who desire to take their skills to the next level.
- SQLZoo: SQLZoo is a Wiki-based interactive education that provides SQL learners with courses and projects. Learners start with basic functions like COUNT, SUM, and AVG and work their way up to more complex assignments. GROUP BY, Indexes, Views, SQL Joins, Sub-queries, and managing NULL values in SQL are all addressed in detail. SQLZoo also has a variety of SQL quizzes where you can put your knowledge to the test. Simple instructions and interactive examples for making queries and viewing results in your browser are available at SQLZoo. It includes the SELECT clause for reading data, CREATE for building a new database, ALTER for altering the database, and DELETE for deleting data and tables, among other SQL clauses. In a word, this site is one of the best free online resources for learning and mastering SQL. Any programmer that is interested in SQL can benefit from this website.
- Youtube: YouTube is more of a learning site than a video-sharing one. If you’re like most developers, you’ll look for free SQL video instruction on YouTube. YouTube is also simple and fun. On YouTube, you’ll find a plethora of SQL videos. One issue that many faces are deciding where to start on YouTube. The results of a YouTube search are unorganized. Even if you click one, you have no notion which video to watch next. To solve this problem, you can use LearnTube (a free chrome extension) from Career Ninja. The chrome plugin organizes your results from first to last. As a result, you’ll get a well-organized result, such as free course content on YouTube. It’s a helpful extension for learners.
- Coursera: Coursera is a free online learning platform where you may master digital skills that are in high demand. Many individuals are unaware that Coursera offers a number of free courses as well as the option to audit the majority of their more priced courses. They are the most popular website for learning Data Science, and they provide a variety of good courses on topics such as SQL.
- Udemy: On Udemy, you can learn the essentials of SQL and databases for free. Finding the right free course is also tough because there are so many alternatives, and you have no idea which instructor is the best or which course best suits your interests, so you must watch previews and read reviews before making a selection.
- The SQL Course at Stanford University: A free SQL course is available from Stanford University. This course provides excellent SQL video lectures covering both basic and advanced SQL and relational database principles. This course is offered in both registered and non-registered versions, although registration is recommended to save your progress. Because this is a self-paced course, you can go at your own pace.
Final Thoughts: The resources in this blog are just a small sample of the numerous free SQL resources available online. Use these fully free resources, as well as those you find on your own, to learn the SQL skills you’ll need to further your career.
