I would like improve my SQL capabilities.
I red really many SQL books and would like to
get more about SQL for my work as oracle database manager.

What can you recommend?

Thanks,
Werutz

well, “bribe your users” isn’t quite what i said ;-)

the broader point about incentives is that marketers and software makers both need to put themselves in their target’s shoes and ask “why is it someone would think ‘i’d like to share this with someone i know?’”

if your answer is “because [product] is entertaining” or “because [product] is useful”, you’re not thinking deeply enough.

hth!