Lynda.com's collection of language tutorials, covering programming and other languages through video instruction. Commenters describe the tutorials as in-depth, though they are paid rather than free.

Commenters point to it as a source of in-depth language tutorials, and one calls its database theory courses really good.

On Reddit (2)

1. Recommendsuberdavisr/learnprogramming2021in “Looking for a way to learn SQL/a project to do in sql/python?”▲ 1

   Learn general database theory on Lynda.com Really good courses there.

2. RecommendsTequila_Wolfr/learnprogramming2012in “How do I create this simple program? Seeking guidance!”▲ 0

   If you're looking to learn about computing in general and some good programming fundamentals, try MIT's OpenCourseWare. They have a heap of their Section 6 (MIT's Computer Science Department) classes available on their site of which I recommend starting here. Also, Lynda.com has some pretty…

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