Best Free SQL Courses

SQL is an abbreviation for Structured Query Language. Every business dealing with a significant amount of data needs a database to store the data, and SQL is a programming language used to communicate with the database. If you are interested in learning programming, then you should learn SQL.

If you want to become a Data Scientist, Data Engineer, or Data Analyst, you must have Structured Query Language (SQL) knowledge, as these are the fields that deal with data. You must know how to access, create, delete, or update data in the database with the help of SQL.

In this article, we will discuss some of the best free SQL courses that will help you to gain knowledge of SQL and get a job.

Following are the courses on Structured Query Language (SQL):

1. Introduction to Structured Query Language (SQL) (Available on Coursera)

The "Introduction to Structured Query Language" course is offered by the University of Michigan. Charles Russell Severance is the tutor for this course. If you want to learn SQL, then this course is perfect for you as you will learn everything from the basics.

This course will teach you how to install PHP and SQL on various platforms such as Windows, Linux, and Macintosh. You will learn basic SQL operations, database keys, and indexes, data types in SQL, relational database design, building a physical data schema, normalization & foreign keys, many-to-many relationships, etc.

Key Points:

• Its rating is 4.8 stars.
• This course will be completed in about 16 hours.
• Learn the fundamentals of Structured Query Language (SQL).
• Learn on your own time.
• It provides exercises for practice.
• It provides 6 quizzes to check your knowledge.

2. Learn SQL (Available on Codecademy)

The course "Learn SQL" is available on Codecademy. Charles Russell Severance is the tutor for this course. If you are interested in learning SQL from scratch, then this course is designed for beginners, and you can enroll in this course to learn it.

You will understand manipulation, aggregate functions, queries, and multiple tables in this course. You will create projects on various topics, such as creating a table, New York Restaurants, Trends in Startups, Lyft Trip Data, and more.

Key Points:

• Its rating is 4.6 stars.
• Its skill level is a beginner.
• This course will be completed in about 8 hours.
• Learn to work with databases using Structured Query Language (SQL).
• Learn on your own time.
• It offers 5 projects.
• It offers 4 quizzes.

3. The Complete SQL Bootcamp: Go from Zero to Hero (Available on Udemy)

The course "The Complete SQL Bootcamp: Go from Zero to Hero" was created by Jose Portilla. You should take this course if you want to learn how to communicate with a database using SQL. No prior experience is required to learn SQL as you will learn from beginner to expert level.

In this course, you will learn about SQL cheat sheets, fundamentals of SQL statements, GROUP BY statements, aggregation functions, introduction to JOINS, advanced SQL commands, mathematical operations & operators, timestamps & extract, string functions & operators, creating databases and tables, primary keys & foreign keys, introduction to conditional expressions & procedures, an overview of Python & PostgreSQL, and much more.

Key Points:

• Its rating is 4.7 stars.
• This course will be completed in approximately 8 hours and 51 minutes.
• Learn Structured Query Language (SQL) from zero to advanced level.
• It provides multiple assessments to check your knowledge.
• Learn on your own time.

4. Databases and SQL for Data Science with Python (Available on Coursera)

IBM offers the course "Databases and SQL for Data Science with Python" on Coursera. Hima Vasudevan and Rav Ahuja are the tutors for this course. If you are a data analyst, data scientist, or data engineer, you must know how to use a database. You can take this course to learn everything about Databases and SQL.

In this course, you will learn introduction to databases, INSERT statements, SELECT statements, UPDATE & DELETE statements, relational database concepts, CREATE TABLE statement, ALTER, DROP, & Truncate tables, using string patterns & ranges, grouping result sets, sorting result sets, date & time built-in functions, working with multiple tables, sub-queries & nested selects, accessing a database using Python, creating tables, loading data, querying data, working with real-world datasets, etc.

You will also learn about advanced SQL for data engineering, such as ACID transactions, Inner Join, Outer Join, and more.

Key Points:

• Its rating is 4.6 stars.
• This course will be completed in approximately 39 hours.
• Learn Databases and SQL for Data Science.
• Learn on your own time.
• It provides a total of 44 quizzes to test your knowledge.

5. SQL for Data Science (Available on Coursera)

The University of California offers the "SQL for Data Science" course on Coursera. Sadie St. Lawrence is the instructor for the course. If you are a business person and deal with a large amount of data, then you must learn SQL for Data Science to handle the data. If you want to make a career in data science, then you must learn this course.

In this course, you will understand what SQL is, the evolution of data models, creating tables, adding comments to SQL, retrieving data with a SELECT statement, data modelling, ER diagrams, filtering with SQL, aggregate functions, math operations, grouping data with SQL, subqueries, joining tables, Aliases & Self Joins, Inner Joins, Unions, working with text strings, case statements, data governance & profiling, working with data & time strings examples, and much more.

Key Points:

• Its rating is 4.6 stars.
• This course will be completed in about 14 hours.
• Learn the fundamentals of Structured Query Language for Data Science.
• Learn on your own time.
• It offers 13 quizzes.

6. The Structured Query Language (SQL)

The course "The Structured Query Language" is offered by the University of Colorado Boulder. Alan Paradise is the tutor for this course. If you want to learn SQL, then this course is amazing because it is a beginner-level course, so you will learn everything from the beginning.

In this course, you will learn the origins of SQL, relational algebra, basic SELECT Clause, WHERE Clause, data functions & nulls, group functions, subqueries, subtotals, getting data from multiple tables, JOIN syntax, inner JOINS, Outer JOINS, database constraints, DDL & DML, creating & using VIEW, creating unique keys with IDENTITY, the CASE statement, some advanced SQL, and more.

Key Points:

• Its rating is 4.7 stars.
• This course will be completed in about 25 hours.
• Learn the concepts of Structured Query Language.
• Learn on your own time.
• It provides exercises for practice.
• It provides video lectures and reading material.
• It offers 29 quizzes.

7. SQL: A Practical Introduction for Querying Databases

The course "SQL: A Practical Introduction for Querying Databases" is offered by IBM, and Rav Ahuja is the tutor for this course. This course is for you if you want to learn how to use databases. If you want to start a career in Data Science or its related field, then knowledge of SQL is essential.

In this course, you will start the course with an introduction to databases, and then you will learn SELECT statements, INSERT statements, UPDATE statement & DELETE statements, concepts of a relational database, types of SQL statements, using string patterns & ranges, sub-queries & nested selects, working with multiple tables, working with real-world datasets, Inner Joins, Outer Joins, ACID transactions, stored procedures, and more.

Key Points:

• Its rating is 4.6 stars.
• This course is for newbies.
• This course will be completed in approximately 21 hours.
• Learn the basics of Structured Query Language for Data Science.
• Learn on your own time.
• It provides exercises for practice.
• It provides video lectures and reading material.
• It offers 33 quizzes.

8. Managing Big Data with MySQL

The course "Managing Big Data with MySQL" is offered by Duke University. Jana Schaich Borg and Daniel Egger are the tutors of this course. If you want to learn how to manage big data with the help of MySQL, then you can take enroll in this course.

In this course, you will understand relational databases, working of Entity-Relationship diagrams, relational schemas, database design tools, query syntax, Jupyter notebooks, Jupyter account, Dognition database information, Dillard's database information, introduction to Teradata, JOINS, many-to-many relationships, queries to address more detailed business questions, etc.

Key Points:

• Its rating is 4.7 stars.
• This course will be completed in approximately 32 hours.
• Learn how relational databases work.
• Learn on your own time.
• It provides exercises for practice.
• It provides video lectures and reading material.
• It offers 4 quizzes.

9. Advanced MySQL Topics (Available on Coursera)

The course "Advanced MySQL Topics" is offered by Meta on Coursera. This course is taught by Meta staff. If you want to study advanced topics of MySQL, then this course is good as it will teach you from simple SQL to an advanced level. You can enroll in this course and start learning.

In this course, you will learn advanced MySQL topics such as variables, parameters, functions, types of MySQL triggers, developing user-defined functions, working with MySQL scheduled events, database optimization, indexes in MySQL, optimizing database SELECT statements, MySQL transaction, MySQL JSON, MySQL prepared statement, using MySQL for data analysis, emulating the full outer JOIN in MySQL, and much more.

Key Points:

• Its rating is 4.5 stars.
• This course will be completed in approximately 14 hours.
• Learn Structured Query Language from beginner to advanced level.
• Learn on your own time.
• It provides exercises for practice.
• It provides video lectures and reading material.
• It offers 16 quizzes.

10. Learn SQL Using PostgreSQL: From Zero to Hero (Available on Udemy)

The course "Learn SQL Using PostgreSQL: From Zero to Hero" is created by Will Bunker, so he will be the tutor for this course. This course is best if you want to learn PostgreSQL from beginner to advanced, but you must have basic computer skills.

In this course, you will study how to install PostgreSQL on various platforms such as Ubuntu, Mac, and Windows. You will learn to select all data from a table, search for specific records, use WHERE, use BETWEEN, use IN, connect with psql, schemas in psql, databases in psql, schema basics, use MIN and MAX functions, rename columns with Alias, diagramming table relationships, grouping & aggregation functions, subqueries, modifying data in tables, indexes & performance tuning, table constraints, database design & normalization, Common Table Expressions (CTE), views, sequences, conditional expressions, composite types, Window functions, array data types, managing databases, introduction to PostGIS, and more.

Key Points:

• Its rating is 4.2 stars.
• This course will be completed in approximately 16 hours and 13 minutes.
• Learn PostgreSQL from Basic to Advanced level.
• Learn on your own time.

11. MySQL for Data Analysis and Business Intelligence (Available on Udemy)

The course "MySQL for Data Analysis and Business Intelligence" is designed by 365 Careers. If you want to become SQL Developer or Business Analyst, then you must learn this course.

In this course, you will learn SQL keywords, DDL, DML, DCL, TCL, relational database essentials, database terminology, relational schemas, introduction to the MySQL interface, creating a database, data types, MySQL constraints, SELECT statement, INSERT statement, DELETE statement, UPDATE statement, aggregate functions, subqueries, stored routines, SQL Joins, views, advances SQL topics, Window functions, CTE, and more.

Key Points:

• Its rating is 4.6 stars.
• This course will be completed in approximately 11 hours and 56 minutes.
• Learn Structured Query Language for business analysis and data management.
• Learn on your own time.
• It provides quiz questions and downloadable exercises.

12. The Ultimate MySQL Bootcamp: Go from SQL Beginner to Expert (Available on Udemy)

The course "The Ultimate MySQL Bootcamp: Go from SQL Beginner to Expert" was created by Colt Steele. MySQL is one of the most sought-after skills, so you should definitely learn it. If you are new to programming or interested in learning SQL, then this course is best.

In this course, you will learn creating databases and tables, basic datatypes challenge, insert data, primary keys, CRUD basics, CRUD challenge, refining selection, string functions, aggregate functions, data types, date functions, time functions, formatting dates, many to many basics, constraints & ALTER tables, views, modes, comparison & logical operators, Window functions, Instagram database clone, working with Instagram data, database triggers, and much more.

Key Points:

• Its rating is 4.5 stars.
• This course will be completed in about 14 hours.
• Learn MySQL from beginner to expert level.
• Learn on your own time.

Conclusion:

In this article, you read about the many SQL online courses on various e-learning platforms. We have discussed various types of SQL courses for Data Science, QA Testers, Business Intelligence, SQL Server Manager, Data Administrator, Big Data, etc. You can enroll in any course as per your wish or requirement and learn SQL to apply in your career or get a job in a reputed company.