Can SQL be learnt absolutely online?

Question

I don't mean, learning the periphery but the core of SQL. If yes, what can you recommend to aid the learning process?

Answer 1

every thing will be easy with the experiment :)

Answer 2

Self learning is a best way to learn-with that being said,sql can be learnt completely through online and you can youtube to get ideas on the ways to learn core sql :)

Answer 3

Yes