User blog comment:Joekido/This is why Databooks can't be trusted anymore./@comment-53539-20140108192221

Oda approves the databooks, this was confirmed very early days.

It is possible that at the time of the databook, Oda had no plans to bring Sabo back and therefore, at the time of the books print, was correct. Oda does change his mind on character concepts as we've seen them ourselves.

They also contain things that Oda's supplied for fans via the books only, concept and so forth. This makes databooks still legit as a source, een if they make mistakes. Furthermore, even Oda himself has made things like spelling mistakes.