For an instructor lead, in-depth look at learning SQL click below.
In today’s data-driven world, knowing how to query and manipulate data is a critical skill. SQL, or Structured Query Language, is the standard language for dealing with relational databases. Whether you are a beginner eager to delve into the world of data, or an experienced analyst looking to sharpen your skills, there’s an SQL course out there for you. Here are some of the best self-paced study courses that I deem noteworthy.
1. SQL for Data Science on Coursera
The course by University of California, Davis is a great hands-on course for beginners. Graphical interfaces are useful for learning, but real data work requires the ability to write SQL code scripts, and that’s one skill this course hones very effectively.
One of the initial code examples you may encounter in this course is a simple piece of SQL code to select all records from a table:
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SELECT * FROM Employees; |
This command retrieves all fields from the “Employees” table.
2. The Complete SQL Bootcamp 2021: Go from Zero to Hero on Udemy
Providing an excellent balance of theory and practice, this course not only familiarizes you with SQL syntax, but also with how to write complex queries.
For example, if you wanted to retrieve only the employees that have a specific job title from your “Employees” table, you could write:
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SELECT * FROM Employees WHERE job_title = 'Data Analyst'; |
3. SQL Essential Training on LinkedIn Learning
The SQL Essential Training course on LinkedIn Learning is a comprehensive overview of SQL skills. It’s a good choice for beginners and intermediates alike.
Suppose if you want to order the rows retrieved in your query by a certain field, you would use the ORDER BY command in SQL. The following code will retrieve all records from the “Employees” table and sort them by the “last_name” field:
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SELECT * FROM Employees ORDER BY last_name; |
In conclusion, mastering SQL can be a fun and rewarding endeavor. The courses listed above will provide you with the necessary knowledge to start manipulating your own data. Start your journey today, dive into these courses, and emerge as a SQL expert.