If you are an application developer, like someone developing a server-side application using Java or .NET or any other programming language which uses a database like Oracle and Microsoft SQL Server or a junior DBA, then you must learn these database technologies to effectively work in your Job. Even though your organization might have DBAs or Database Administrators to help you with the database, more often than not, it's application developers who end up writing SQL scripts to create data, upload data, query data, and writing complex stored procedures and triggers to implement application functionalities. DBAs job mostly does database installation, access control, security, and other database admin stuff.
Both Oracle and Microsoft SQL Server are a viral database, and many organization uses them for storing their data. They also have their own SQL language, like PL/SQL and T-SQL, which enhances SQL and allow you to do more powerful stuff by creating SQL scripts.
If you want to learn Oracle database and SQL Server, then you have come to the right place. In this article, I am going to share 5 free Oracle and SQL server courses you can take online to learn these technologies or improve your knowledge.
I have been sharing free resources, like online courses and books for quite some time now, and if you are the first time here, then you can search through this blog to find out free courses on Java, Python, Linux, Angular, Spring, and many more technologies.
I have a passion for learning, and not long ago, books were my primary source of knowledge. Whenever I wanted to learn a new framework or programming language, I just buy a couple of books and start with that, but ever since I started learning from online courses on Udemy, I have never looked back. They are the best way to learn new stuff.
Btw, if you are just looking for the best course to learn SQL online, irrespective of any vendor-specific database stuff, then The Complete SQL Bootcamp by Jose Portilla is definitely worth joining. It uses PostgreSQL but mainly teaches ANSI SQL, which runs on all kinds of relational databases.
As an application developer, you have to know SQL as well as the database you are working with. Just knowing SQL is not enough if you are working in Microsoft SQL Server. You must know a little bit about Microsoft SQL Server itself and the query language it uses, I mean, Transact-SQL or T-SQL.
The same is true for Oracle and MySQL. Good knowledge of PL/SQL is required to work effectively on Oracle databases, like to write SQL scripts, generate reports, upload and download data, etc.
These free online courses are great to start with Oracle and Microsoft SQL Server in 2025. They are not the most comprehensive or provide in-depth knowledge, but they will give you enough detail to perform your day-to-day tasks.
This 4 hour 40 minute long free Udemy course is an essential course and starts with SQL, so if you know SQL already, then you may feel bored with the slow pace of the course. It's not the best of the Oracle course you will see, but the most important thing is it's free and provides a decent introduction to Oracle SQL.
In short, join this free course only if you are starting with scratch otherwise head to the next class, which is more exciting and provides some useful tips and tricks while using Oracle SQL Developer, a tool most of us to work with Oracle database.
In this course, you will learn how to install and configure SQL Developer to run in your desired language, like English or Spanish, and only with the features, you need.
You will learn how to create database connections, execute commands and scripts, and learn to display your results in a way that makes your work easier. The course also teaches you how to export data in different formats using different methods and how to use code templates and snippets to write code more straightforward and faster.
Both Oracle and Microsoft SQL Server are a viral database, and many organization uses them for storing their data. They also have their own SQL language, like PL/SQL and T-SQL, which enhances SQL and allow you to do more powerful stuff by creating SQL scripts.
If you want to learn Oracle database and SQL Server, then you have come to the right place. In this article, I am going to share 5 free Oracle and SQL server courses you can take online to learn these technologies or improve your knowledge.
I have been sharing free resources, like online courses and books for quite some time now, and if you are the first time here, then you can search through this blog to find out free courses on Java, Python, Linux, Angular, Spring, and many more technologies.
I have a passion for learning, and not long ago, books were my primary source of knowledge. Whenever I wanted to learn a new framework or programming language, I just buy a couple of books and start with that, but ever since I started learning from online courses on Udemy, I have never looked back. They are the best way to learn new stuff.
Btw, if you are just looking for the best course to learn SQL online, irrespective of any vendor-specific database stuff, then The Complete SQL Bootcamp by Jose Portilla is definitely worth joining. It uses PostgreSQL but mainly teaches ANSI SQL, which runs on all kinds of relational databases.
5 Best Free Courses to learn Oracle and SQL Server Database in 2025
Anyway, let's come back to the topic. I have used several databases in my career like MySQL, Oracle, SQL Server, and PostgreSQL. Whenever I change the project, I work in a different database, which forced me to learn many of them to properly do my job.As an application developer, you have to know SQL as well as the database you are working with. Just knowing SQL is not enough if you are working in Microsoft SQL Server. You must know a little bit about Microsoft SQL Server itself and the query language it uses, I mean, Transact-SQL or T-SQL.
The same is true for Oracle and MySQL. Good knowledge of PL/SQL is required to work effectively on Oracle databases, like to write SQL scripts, generate reports, upload and download data, etc.
These free online courses are great to start with Oracle and Microsoft SQL Server in 2025. They are not the most comprehensive or provide in-depth knowledge, but they will give you enough detail to perform your day-to-day tasks.
1. Oracle SQL - A Complete Introduction [Free]
Oracle is one of the most popular relational databases of all time. This free course introduces Oracle SQL to anyone interested in getting into Oracle SQL Development, like application developers and DBAs.This 4 hour 40 minute long free Udemy course is an essential course and starts with SQL, so if you know SQL already, then you may feel bored with the slow pace of the course. It's not the best of the Oracle course you will see, but the most important thing is it's free and provides a decent introduction to Oracle SQL.
In short, join this free course only if you are starting with scratch otherwise head to the next class, which is more exciting and provides some useful tips and tricks while using Oracle SQL Developer, a tool most of us to work with Oracle database.
2. Oracle SQL Developer: Tips and Tricks [Not Free Now]
This is an excellent course to learn Oracle SQL Server, an IDE or tool which allows you to connect to multiple Oracle database and run SQL query against them. It's like SQL server Management studio or TOAD, another popular tool to connect and work with Oracle database.In this course, you will learn how to install and configure SQL Developer to run in your desired language, like English or Spanish, and only with the features, you need.
You will learn how to create database connections, execute commands and scripts, and learn to display your results in a way that makes your work easier. The course also teaches you how to export data in different formats using different methods and how to use code templates and snippets to write code more straightforward and faster.
It's essential to know your tool to become a better developer, and that's why I highly recommend this course to the programmer who uses the Oracle SQL Developer tool to work with Oracle Database. It's free, so you have nothing to lose.
This course was free earlier but right now it seems not free and converted into a paid course. Though, I have kept this course in the list as its a good course to learn a useful tool for Oracle database.
3. Microsoft SQL Crash Course for Absolute Beginners [Free Course]
This is an excellent free course to start with Microsoft SQL Server. Whether you are an application developer or an aspiring DBA, you will benefit from this course.This 2 hour long free SQL Server course is a detailed course and introduces you to many parts of SQL Server like
In short, a great introductory course on Microsoft SQL Server for anyone who wants to learn SQL Server and T-SQL. You should join this course to start your SQL Server journey, it's also free, so you have nothing to lose.
I have many SQL Server DBA friends in London and the USA, which are making good money as consultants and inspired many people to get into Database administration.
This course will teach you everything you wanted to know about becoming a SQL Server DBA but were afraid to ask.
The primary purpose of this course is to give people a sample of what SQL Server administration is all about, what are the skills and information you need to become a SQL Server DBA.
You will also find some guidelines as to what to expect from the job, and get some hands-on experience in installing and navigating through the SQL Server management studio.
For example, Oracle has PL/SQL, and Microsoft SQL Server has T-SQL, which provides loops, operators, and functions to write powerful SQL server scripts and stored procedures.
This free course will teach you those advanced T-SQL querying concepts, which will allow you to write complex SQL Queries.
This course covers advanced concepts like Views, Triggers, Dynamic Queries, etc. The T-SQL Scripts for all demos are uploaded. The session about 2+hours and has assignments at the end of each concept.
That's all about some of the free online training courses to learn Oracle and Microsoft SQL Server in 2025. These courses not only teach you the basics of Oracle or SQL Server but also the SQL dialect they use, like PL/SQL and T-SQL.
- SQL Server Management Studio (SSMS, which allows you to learn T-SQL and execute queries.
- JOINs and Subqueries
- GROUP By and aggregate functions
- UNION and UNION ALL
In short, a great introductory course on Microsoft SQL Server for anyone who wants to learn SQL Server and T-SQL. You should join this course to start your SQL Server journey, it's also free, so you have nothing to lose.
4. The Ultimate Guide to Becoming a SQL Server DBA [Free Udemy Course]
This free course is specially designed for IT professionals who want to become a SQL Server DBA, which is a very lucrative career.I have many SQL Server DBA friends in London and the USA, which are making good money as consultants and inspired many people to get into Database administration.
This course will teach you everything you wanted to know about becoming a SQL Server DBA but were afraid to ask.
The primary purpose of this course is to give people a sample of what SQL Server administration is all about, what are the skills and information you need to become a SQL Server DBA.
You will also find some guidelines as to what to expect from the job, and get some hands-on experience in installing and navigating through the SQL Server management studio.
5. Advanced Databases and SQL Querying [Free Online Course]
You might know that different database vendors have different SQL dialects to use in their database, which provides additional functionalities on top of SQL.For example, Oracle has PL/SQL, and Microsoft SQL Server has T-SQL, which provides loops, operators, and functions to write powerful SQL server scripts and stored procedures.
This free course will teach you those advanced T-SQL querying concepts, which will allow you to write complex SQL Queries.
This course covers advanced concepts like Views, Triggers, Dynamic Queries, etc. The T-SQL Scripts for all demos are uploaded. The session about 2+hours and has assignments at the end of each concept.
That's all about some of the free online training courses to learn Oracle and Microsoft SQL Server in 2025. These courses not only teach you the basics of Oracle or SQL Server but also the SQL dialect they use, like PL/SQL and T-SQL.
If you are an application developer or junior DBA working your way to learn these technologies, these courses are great to start with.
As I have said, online courses are a great way to learn a new skill like SQL or Programming language. One more reason I spend more time learning online classes nowadays is that they are much cheaper than books, you can get courses for just $10.99 or $9.99 on Udemy on their flash sales.
I also found many online courses on Udemy, where people share their personal experiences, which is the most effective way to learn things. But, I still read books mostly to learn the concept in-depth, but I really find online courses great to start with new technology.
P. S. - If you are learning Oracle to get certified, then I also suggest you take a look at The Complete Oracle SQL Certification Course, which is specially designed to do well on the Oracle SQL Certification.
As I have said, online courses are a great way to learn a new skill like SQL or Programming language. One more reason I spend more time learning online classes nowadays is that they are much cheaper than books, you can get courses for just $10.99 or $9.99 on Udemy on their flash sales.
I also found many online courses on Udemy, where people share their personal experiences, which is the most effective way to learn things. But, I still read books mostly to learn the concept in-depth, but I really find online courses great to start with new technology.
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Thanks for reading this article so far. If you like these free online courses to learn Microsoft SQL Server and Oracle database, 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 are learning Oracle to get certified, then I also suggest you take a look at The Complete Oracle SQL Certification Course, which is specially designed to do well on the Oracle SQL Certification.
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