I think there's a difference between "someone who wants to learn databases" and "someone who has a specific project to implement in a specific time frame". If y

I think there's a difference between "someone who wants to learn databases" and "someone who has a specific project to implement in a specific time frame". If you are in the former, then stay at the high level - learn what SQL is, what RDBMS' are, and then learn a little about logical database design. If, though, you want to build a product, you need to (a) pick the product, and (b) start with books/videos on that subject matter. You can pick up the basics along the way.