SQL is one of the most essential skills for any programmer, irrespective of technology, framework, and domain. It's even more popular than a mainstream programming language like Java and Python, and it definitely adds a lot of value to your CV.
SQL allows you to play with data, the most valuable asset of today's world. By learning SQL, you can get answers to your question. For example, if you are a course creator for Udemy, a popular online course platform, and want to know which course is the best seller and which course is not selling at all.
It can help in troubleshooting as well as reporting. Also, SQL is a very stable technology, it's been around for years, and it will be needed in the future. This means any investment you make in learning SQL will also serve you for a long time in your career.
9 Best Online Courses to learn SQL and Database in 2023In the past, I have also shared some free SQL courses which my readers liked, but the feedback was that they want more comprehensive and in-depth material, and that's why I am coming with this list of best SQL and database courses for both beginners and experienced programmers.
In this list, I have included some of the best SQL and Database courses from Udemy and Pluralsight, two of the leading place for online courses.
These courses will teach you SQL from ground zero. Most of them don't even need a pre-requisite as long as you know how to operate a computer and download stuff from the internet, which you know, and that's why you are reading this article.
The author Jose Portilla is one of the most popular Udemy instructor and uses PostgreSQL for demonstration purposes, which is both free and open source. It also comes with a GUI tool called PgAdmin, which makes it easy to work with the PostgreSQL database.
Even though the author uses PostgreSQL, all the concepts you learn in this book are applicable to other major databases, like Oracle, Microsoft SQL Server, and MySQL.
Another plus point of the course is an instructor who is very enthusiastic and detailed in his approach. Overall a great course to start learning SQL from scratch. Particularly for beginners.
It's entertaining watching them discussing and explaining SQL concepts. I know SQL is interesting, but they make it even more exciting. It's like old college days with some friends always jumping and doing stuff which makes you laugh but at least help remove boredom from the class.
Coming to the content, as the name suggests, it's a beginner course, but you will learn all essential concepts, like creating a database, tables, stored procedures, using SELECT, INSERT, UPDATE and DELETE statements.
They use the both MySQL and PostgreSQL database in this course, which is the most popular, open-source database, and you can download that for free. They have a section for downloading and installing MySQL database too.
After basics, you will learn some non-trivial stuff, like GROUP BY operator and aggregate functions, connecting tables, joining on multiple conditions, and dealing with other SQL operators and functions. The best part, of course, is that it has got quizzes and exercise to test your SQL knowledge, which is key to building the data sense you need to work with relational databases and SQL.
3. SQL for Data Science [Coursera]
In this course, you will learn about creating basic SQL queries, different types of joins, like right and left join, inner join, outer join, cross enter, self-join, etc.
The course also explains advanced concepts, like indexes, and writing SQL queries with multiple tables, and joining them together to produce a meaningful report.
You will also explore Database design concepts, like normalization. The course has an entire section explaining Normalization and various standard forms, like 1NF, 2NF, 3NF, BCNF, etc.
The course uses both Microsoft SQL Server and PostgreSQL, and the best part of the course is that it focuses on enhancing your Data Analytics skill with real-world Data Science exercises.
If you are interested in Data Science and want to become a Data Scientist, then a good knowledge of SQL will go a long way, and this course is a great place to start with.
PL/SQL and a Database administrator who knows ins and out of Oracle database.
No matter whether you want to learn Oracle from an application development perspective or from a Database admin perspective, this course is an excellent place to start.
In this course, you will not only learn to create a database, tables, stored procedures but also how to write SQL queries. You will learn essential SQL concepts in the Oracle database, like SELECT, INSERT, UPDATE, DELETE and ALTER statements, joins, group by, where clause, and other functions.
It's a comprehensive course with 100+ lectures and is well organized into 16 sections, which will teach you all important SQL concepts using the Oracle database.
The instructor is excellent, and it uses free tools like Oracle SQL Developer, which you can download from the web. Overall a superb SQL course if you want to learn with Oracle database.
SQL along with Data Structure and algorithms.
By taking this course, you will not only prepare well for your next interview but also learn a lot about essential SQL concepts. For example, if you just watch the preview of one chapter, which discusses how to tune SQL queries or how to find and explain the execution plan, you learn a lot.
I am a particular fan of learning from interview questions as they encourage me more and bring curiosity, and if you are like me, you will find this course immensely helpful. I have bought this course for just $10.99 USD last year and still enjoy it a lot.
It's also a perfect companion for Joe Gekko's SQL puzzlers book, which is an excellent read in itself. An interesting SQL query and puzzle book, which is you must read if you haven't learned it yet.
8. High-Performance SQL video course by Vlad Mihalcea
If you are looking for an advanced SQL course to level up your SQL skills then this course is for you. This course is created by Java champion and high-performance specialist Vlad Mihalcea and he will explain advanced SQL concepts in depth.
This course contains 36 videos and over 4 hours of great advanced SQL stuff.
If you are interested in learning about advanced SQL concepts like Joins Best Practices, Subqueries and SemiJoins, Derived Tables and CTE, Recursive queries, JSON processing then, you are going to love this video course.
And, that's not all. There are many more modules to come, which you will get for free:
Explain, Analyze, and Demystifying Execution Plans
PIVOT, UPSERT, MERGE
Pagination Best Practices
You can grab his course now for a 50% discount, I mean half price.
Here is the link to get your discount - High-Performance SQL video course
As I know Vlad he hardly gives discounts and this is a rare chance to get this awesome SQL course for a 50% discount, most importantly this is also a rate SQL course that covers these advanced concepts in detail.
9. Database Design Fundamentals for Software Engineers [Educative]
Database design is one of the topic which many programmer often ignore and struggle to get it right but this is one skill which often differentiate a beginner with an experienced programmer and developer.
In this text-based interactive database course, you'll learn about the fundamental concepts of databases, why and when they're used, what relational databases are, and entity-relationship diagrams. How to design tables, which column to include, how to design primary and unique key and indexes.
You will also learn important techniques like normalization that help to increase the efficiency of databases. You'll also learn the basics of Structured Query Language (SQL) for beginners. After completing this online course, you will be able to move onto more advanced courses involving database systems and SQL.
By the way, you can either join this course individually or you can take an Educative Unlimited subscription (recommended) to get access to their 350+ high quality, text-based, interactive courses to learn key skills for coding interviews, software development, and technology.
That's all about some of the best online courses to learn SQL and Database fundamentals. These are excellent SQL courses for both beginners and experienced programmers who don't know SQL. Since SQL skills are always in demand and, in fact, mandatory along with other programming skills, a good knowledge of SQL will not only help you to get a better job but also help in your current day-to-day tasks.
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Thanks for reading this article so far. If you like these best SQL courses for beginner software developers and DBAs to join in 2023, then please share them with your friends and colleagues. If you have any questions or feedback, then please drop a note.
P. S. - If you don't mind learning from free resources and in fact looking for some good free courses to learn Database and SQL then you will also find this list of free SQL and Database courses useful. The list contains free online courses from Udemy, Coursera, Pluralsight, and other platforms to learn Oracle, MySQL, and SQL Server, and ANSI SQL basics.