Free Online Sql Classes – Everyone likes to get something for free, even when it comes to SQL courses. But is free always good? Find out how and where you can learn SQL for free – in a way that’s worth your time.
Beginner database courses and SQL tutorials often promise to teach SQL basics like SELECT, WHERE, GROUP BY, HAVING, and ORDER BY. These commands are the basis of a strong set of skills for entry-level jobs in data analysis or databases. But do free online SQL courses live up to their promise? Do they teach good SQL techniques? Some courses introduce more advanced SQL, such as JOINs or window functions. Are they worth your time?
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In truth, not all courses are created equal. Even the free ones, while they won’t set you back any money, can be frustrating and time-consuming if they’re poorly designed. In this article, I take a closer look at free online SQL courses that are worth your time. I’ve divided my list into courses that teach basic SQL, advanced SQL, or both (which I’ll call extended SQL).
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This Udemy offering is an introductory online course in SQL querying and data analysis. You don’t need any SQL background to complete this – if you are a beginner and looking to understand basic database concepts and write queries, this course will meet your requirements.
In just two hours of video classes, you will learn how to set up your database environment (Microsoft SQL Server 2014 Express + SQL Server Management Studio) and write simple SQL queries using the following statements :
This course also introduces the concept of SQL JOINs, but more advanced aspects such as joining multiple tables are not covered.
One thing I didn’t like about this course was its lack of practical exercises. On the other hand, the author shares some knowledge that can be taught in an exercise.
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This four-hour YouTube SQL tutorial from FreeCodeCamp will familiarize you with the basics of database management and common SQL statements. One of its biggest advantages is that the course recording is bookmarked – you can easily navigate to the SQL concept of your choice, such as ‘Installing PostgreSQL on Mac OS’.
After learning the basic database fundamentals and how to connect to a database, you will be introduced to PostgreSQL. The list of topics includes:
Is an excellent primer. It addresses questions like “What is a database?”, “What is SQL?”, or even “What is PostgreSQL AKA Postgres?”. The course will serve anyone who wants to understand the basics of databases and explore some (more or less) advanced uses of SQL.
This free Coursera SQL course teaches users to write simple statements and work with basic database-related concepts. The course was created by Charles Russel Severance, a Clinical Professor at the University of Michigan School of Information and a leading Coursera instructor.
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In this course, you will learn about single table queries and the basic syntax of the SQL language. Moreover, you will learn how to perform CRUD (Create, Read, Update, Delete) operations and advanced SQL query techniques such as SQL JOINS or stored procedures. Finally, you will learn to model many-to-many relationships such as those needed to represent users, roles, and courses.
Although this SQL course isn’t usually free, it was June’s Course of the Month. (Each month, users are given free full access to one course.) Furthermore, this course may become free again soon. So I decided to mention this course; it complements beginner courses and reinforces what you’ve already learned.
By now, you’ve noticed that the video tutorials have one small flaw: they lack practical training in what the tutor explains. Practice sets, on the other hand, can help you “catch up” on your SQL knowledge if it’s been a while since you last used it.
The SQL Practice Set contains 88 practical exercises where you write SQL code yourself. At the end, there is a fun challenge where you have to combine all the explained material for a comprehensive review.
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At the time of writing this article (October), the How to INSERT, UPDATE, and DELETE Data in SQL course is the free SQL Course of the Month at . For more information, read an interview with the creator of this great course. And, if you’re reading this later, don’t worry; maybe later this course will be free again. It is worth checking the website from time to time.
This course is about SQL commands that will help you modify the data in your tables. If you work with SQL, this is something you will definitely need. The INSERT function adds new rows, UPDATE changes existing data, and DELETE removes rows from a table. As simple as that sounds, it’s not always easy. Knowing how to use these functions correctly is important; therefore, we have included 52 interactive exercises that allow you to practice your new skills.
How to INSERT, UPDATE and DELETE Data in SQL should take you around 8 hours to complete. You will learn both the basic command syntax and the less-used functions of these commands: working with NULL values, inserting data from one table into another table, updating with values from another table, and working with default values. Topics covered include:
Databases: Advanced Topics in SQL is part of the larger SQL curriculum. It contains some pretty advanced stuff.
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This Stanford University course is free on the edX platform. You can complete it at no cost, but you must pay $50 to get a certificate of completion. However, if you’re interested in the knowledge itself and don’t care about a certificate, this SQL course is a great choice.
If you are a beginner and have just mastered the SELECT clause, you should learn more about SQL before attempting this course. Come back to it later and you will understand a lot more.
The Window Functions course is intended for users who want to improve their SQL skills. It consists of 218 practical exercises that you have to write SQL code to solve. No video lectures, just explanations, examples, and interactive exercises. Bonus fact: This is the only online SQL window functions course I could find on the Internet.
This course covers the syntax and semantics of SQL window functions. It shows how effective they are, explains common use cases, and shows how to use ORDER BY and PARTITION BY to create windows.
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Why did I add this course to the free list? This is the first Course of the Month in April. However, a little bird told me that it could be used again soon! It’s worth following our website for that, right? And if you want to know more about the course, read this interview with the creator of the course.
This list of free SQL courses proves that there is great free stuff on the Internet. However, it is best to trust proven companies and developers when it comes to learning SQL and other career skills. Using an unproven platform can lead to failure. When you start learning SQL, you are developing habits that will affect your future development. It is very important to choose carefully when you are learning SQL online! If you are currently studying SQL, you may have found yourself knee-deep in reading material and may be wondering how you can bridge the gap between book knowledge and the real world. -live SQL application. In this article, we bring you 12 of the most effective ways to practice SQL online, which will take you from a bookworm to a database butterfly in no time!
All theory and no practice will make you a failed SQL user! Get Your Hands Dirty: Learn SQL Online
A few years ago, I met a woman who had just finished a master’s degree in Computer Science. He spent six years of his life slaving away at that level, devouring textbook upon textbook, taking test after test, toiling day and night until the end–
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The problem is that he has never sat at a computer in his entire life. He has never, ever done something he learned about computers. He may not know how to turn one on.
As unbelievable as it may seem, this story is true. This girl comes from a very poor country in Southeast Asia, and the opportunity to practice her computer skills never arose during her six long years as a computer science student.
I’m sure you’ll agree that learning computer science through textbooks alone isn’t exactly a recipe for practical success.
Learning SQL, of course, is no different. You can’t expect to be good at SQL unless you jump into a database and start practicing it.
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If you’re new to the world of SQL, however, it can be difficult to know where and how to get that all-important practical experience. We’ve got you covered below with 12 great resources for practicing SQL online. They are grouped into three categories:
Wanting to get some hands-on SQL experience is great, but first you need to know your way around a database and some basic SQL queries. If you’re looking for training here, we assume you already know some of the basics of SQL. if you
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