I was just checking my answer/reply history and noticed Select using a different value than id on join became Closed as 'Off Topic'.
Tag reads "this could be because your code has a typo, basic error, or is not relevant to most of our audience" In the case of this question that doesn't happen.
If you can understand what the user is asking, should you impose verbosity, rhetoric, or technicality? Is that a requirement or scale for an upvote?
Question has three up-votes and does not seem to be 'too localized'.
So, is it really relevant? Was relevant? How does became off-topic?
Other In-Topic (otherwise adequate), open questions that fit the bill:
How to select distinct record?
Even more: https://dba.stackexchange.com/search?q=help+select
Yet another perfect example: Select over 2 select queries
So in turn, if the question in this case is too 'StackOverflow' then shouldn't it be moved to that community?