This is great if they are looking for an ANSI standard answer but more times than not, they want an answer for a specific database product. Since they've left off the RDBMS, this leads to comments and/or answers which guess the possible solution, and frustration for users.
I've seen this DBA Meta post and it says it should be used:
when the question has a direct relation with SQL.
But that's pretty much ever question here. It seems like this is far too broad of a tag especially if the users don't include the RDBMS they are targeting.
So my question is, does the sql make sense here on DBA? Should the tag be removed?