I decided that I should make myself a list of questions I've never been able to resolve, or that were very difficult to research, because they don't "search" well. That is, in everything from Metalink's Search bar to Google, it's hard to come up with relevant results.
- I'm trying to use RMAN DUPLICATE, and it does indeed produce the data files on the auxiliary database, but it doesn't create a controlfile. The documentation clearly says it should. Searching on terms like RMAN DUPLICATE controlfile not generated only brings up more pages saying that it should.
- All sorts of questions like such-and-such service DOESN'T start, program WON'T run, logfile ISN'T created. Negation - "not" - is clearly a failing of a typical search. Searching for green eggs no ham will find you 10,000 pages on green eggs AND ham, with the one page on "My green eggs came without ham!" buried anonymously as result #4,312.
I'm not sure what I'll ultimately want to do with this list. But I began to wonder, more broadly, if someone out there had already started assembling issues of unsearchable questions. Ironically, Can't Find On Google is very easy to find on Google.