Best place to learn SQL - Cheap/Free?

[Merlin]

Btw, are you still using COBOL? I did some work with COBOL in the 80's but haven't seen COBOL in use anywhere since the late 90's or early 2000's. I assume if you're still supporting COBOL applications, you must be supporting some legacy business apps or old mainframe TPS services.

COBOL all day, the copyright on the system I use daily is from 1987 I believe. They are actually working on putting a new system in place in an oracle table format so that users going forward will access data from there instead of the current SOR. So I need to be able to use the new Oracle sql database and do some high level overviews of the data in it.

Wow. Nice to see that they are finally catching up with the times.