It looks like the SQL tag is used incorrectly for some questions.
Should it only be used when the question is really about SQL? Or is it OK to ask it for a question like: How to determine if an Index is required or necessary How do you test for race conditions in a database?
It seems like non-DBA types might put SQL on anything they ask because that is kind of how they think of DB questions compared to the rest of their world.
Should "SQL" only be used as a tag if the question is actually a SQL question?