Free Online SQL Courses and
Certifications 2025
SQL (Structured Query Language) is a powerful language used to manage data in relational databases. It is used in many fields, such as web development, software engineering, and data analysis. People who are interested in these fields can benefit from taking courses in SQL to gain a better understanding of the language.
Popular Courses
This Ultimate MySQL Bootcamp course is the perfect way to learn the highly in-demand skill of SQL. With over 325 brand new videos, this course covers all the basics and more, including Window Functions, Views, and SQLmodes. It's perfect for anyone who wants to gain insights from data but is intimidated by databases. Through this course, you'll learn to generate reports, analyze data, write SQL joins, design and implement complex database schemas, and more. Plus, you'll get to practice what you learn with exercises, challenges, projects, and real-world scenarios. Enroll today and start learning SQL!
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Get a comprehensive overview of Intermediate SQL Queries
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This course is the perfect opportunity to learn SQL and gain a competitive advantage in the job market. With an average salary of $103,400, SQL developers are in high demand. This course covers a variety of topics, from the basics to more advanced topics, and is taught in MySQL, the most popular SQL database management system. It also includes downloadable exercises, course notes, and quiz questions. With over 1,750,000 students already enrolled, this course is the best training material out there. Upon completion, you will receive a certificate of completion to upload to LinkedIn and show potential employers. Don't miss out on this great opportunity - click the "Buy now" button and start your journey today!
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This course provides an introduction to SQL for data scientists. It covers topics such as SELECT, JOIN, WHERE, Aggregations, CASE WHEN Statements, Common Table Expressions CTEs, Window Functions, and two applications: Time Series Forecasting and Fraud Prediction. It is designed to help data scientists gain the skills they need to work with SQL.
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This SQL Programming Essentials Immersive Training is the perfect course for anyone who wants to become a professional database engineer. Learn and practice the essential concepts of SQL Programming quickly and effectively without wasting your valuable time. With this course, you will be able to build, work with, handle and manage databases easily and in no time. You will learn SQL tools and working environments, selecting, modifying, inserting, updating and deleting data, working with different data types and operations in SQL, sorting and limiting tables, powerful SQL functions and aggregation, building databases and tables, setting rules to tables data, managing and joining multiple tables, setting conditions and more. Plus, you will have the instructor QA Support. Enroll now and become a SQL Programming Rockstar in no time!
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Discover the fundamentals of Oracle Database 19c: Basic SQL
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Learn the basics of Getting Started with Your First SQL Server Instance
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This course teaches students how to query relational databases using inner and outer joins, unions and except. Students will learn to think of data as sets and subsets and practice achieving desired query results.
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Get a comprehensive overview of Introduction to SQL Server
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This course is the perfect way to learn SQL quickly and effectively! With this course, you'll learn how to read and write complex queries to a database using PostgreSQL, one of the most in demand tech skills. You'll also learn how to use Python to further advance your SQL skills. This course is designed to combine the best of both online and in-person instruction, allowing you to learn at your own pace through an interactive environment. With challenges and tests along the way, you'll be able to upgrade your skill set quickly and add SQL to your resume. Join today and start learning!
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This course is the perfect introduction to SQL programming. It covers everything you need to know to get started, from setting up the software to understanding the basics of manipulating data and creating databases. With this course, you'll learn the theory behind SQL and how to think like a programmer. You'll also get plenty of practice to help you reach your full potential. Plus, the course is designed for those with no prior programming experience. And with a 100% satisfaction guarantee, you can't lose - enrol now and start learning today!
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Gain an introduction to Querying with Transact-SQL
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This SQL Course 2023 is a complete boot camp for mastering SQL query and PostgreSQL. It covers topics such as using real world PostgreSQL databases, creating tables, filtering operators, renaming columns, functions, group by and having clauses, aggregation queries, case clauses, table joins, window functions, and more. There are many test your self quizzes and challenges distributed throughout the course, as well as a final exam. Additionally, you will learn how to use Python with SQL Postgres database and use Python Pandas to analyze and visualize Postgres data output. With this course, you will gain the skills you need to retrieve insightful data from a database and become an expert in SQL and PostgreSQL.
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Discover the fundamentals of Introduction to SQL Server Analysis Services
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Gain an introduction to Managing SQL Server Database Concurrency
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This course, SQL for Data Science, is designed to give you a primer in the fundamentals of SQL and working with data so that you can begin analyzing it for data science purposes. You will learn how to retrieve and work with data, and use SQL to select data from tables, create new tables, filter and pare down results, combine data, and use case statements. You will also discuss topics on data governance and profiling, and practice using real-world programming assignments. By the end of this course, you will be able to interpret the structure, meaning, and relationships in source data and use SQL as a professional to shape your data for targeted analysis purposes.
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SQL Courses
Career Trends
Career Prospects
| Average Salary | Position Overview
|
SQL Developer | $158,437 per year
| SQL Developer offers robust editors that allow users to work with SQL, PL/SQL, Stored Java Procedures, and XML. With SQL Developer, users can perform various actions such as running queries, generating execution plans, exporting data in various formats (XML, Excel, HTML, PDF, etc.), executing, debugging, testing, and documenting database programs, among many other features. |
Senior Data Engineer | $203,025 per year | The Senior Data Engineer is responsible for supervising the data integration tasks in the department, which includes creating a data model, managing a data warehouse and analytics environment, and writing scripts for data integration and analysis. |
Data Analyst | $45,197 per year | A data analyst analyzes data to uncover significant insights regarding a business's customers and identifies how the data can be utilized to resolve problems. They also convey this information to company executives and other individuals with a vested interest. |
SQL Server consultant | $121,360 per year | As an SQL Server consultant, your primary responsibility is to provide assistance with the installation and configuration of an SQL Server system. You may also assist with migrating projects or data into the database, troubleshoot and fix programming errors, and offer guidance and support in setting up hardware. |
Python Developer | $122,667 per year | A Python Developer is a valuable member of a software team who possesses expertise in creating, designing, and delivering computer applications and other programs using Python. In addition to this, a Python Developer is accountable for identifying and rectifying errors (debugging) in development projects based on Python. |
Educational Paths
1. Online courses: Websites like Udemy, Coursera, and edX offer online SQL courses that can help you learn the basics and advanced concepts of SQL.
2. Books: There are many books available on SQL that can help you learn the language from scratch or improve your existing knowledge.
3. Community college courses: Community colleges often offer courses in SQL and database management that can provide a more structured approach to learning.
4. Bootcamps: There are many bootcamps available that focus on teaching SQL and database management, providing an intensive and immersive learning experience.
5. Self-learning: There are many online resources available for learning SQL, such as tutorials, blogs, and forums. By dedicating time and effort to self-learning, you can gain a strong understanding of SQL.
Frequently Asked Questions and Answers
Q1: What is SQL and how is it used?
SQL serves as a means of communication with databases and is recognized as the standard language for relational database management systems by ANSI (American National Standards Institute). It enables the execution of various tasks, including updating and retrieving data from databases.
Q2: Can I teach myself SQL?
Many students have successfully learned SQL at their own convenience and speed by taking our interactive courses. Whether or not you choose to use Dataquest, it is entirely feasible to independently learn SQL.
Q3: Is SQL dying out?
SQL is expected to remain in use for a considerable period due to its numerous advantages. It enjoys immense popularity among data professionals and is extensively utilized by leading tech companies that heavily rely on relational databases and SQL. Moreover, professionals working with data are accustomed to SQL, making it a daunting task to retrain them to adopt a different tool.
Q4: What SQL courses can I find on OeClass?
On this page, we have collected free or certified 969 SQL online courses from various platforms. The list currently only displays up to 50 items. If you have other needs, please contact us.
Q5: Can I learn SQL for free?
Yes, If you don’t know SQL, we recommend that you try free online courses, some of which offer certification (please refer to the latest list on the webpage as the standard). Wish you a good online learning experience!
