Udemy.com has a number of free online tutorials covering a number of technical subjects. They also have some tutorials for a fee.
Here is a link to the free tutorials related to SQL - you can use it as a starting point to find other relevant tutorials.
https://www.udemy.com/courses/search/?ref=home&q=sql&price=price-free
The Web is the post powerful learning environment available - learn how to use it by being aware of online learning modules that you can access as needed.
About Me
- Dr. Gerry Santoro
- I am a retired Emeritus founding faculty member of Penn State University's College of Information Sciences and Technology. I am currently an adjunct faculty member of State College of Florida. I have almost 50 years of experience in IT design, programming and management. Many of the classes I have developed and taught deal with Cybersecurity or Risk Analysis. From 2012 to 2017 I was Program Coordinator of the SRA undergraduate degree. My specialties include computer forensics, security and risk management, risk assessment and risk mitigation. This Blog is intended to be one of the ways that I share my interests with others. You may contact me at gmsantoro@gmail.com.