“Can I Change Join Type for Query?” I was recently asked this during Comprehensive Database Performance Health Check. Of course Yes!
The question is about JOIN Elimination for Not Selected Column. It was discussed in the Comprehensive Database Performance Health Check.
Why the result we get is the result we get. The answer is very simple – it is because of the Logical Processing Order of the SELECT Statement.
DBAs from the client’s organization ended up an argument about how T-SQL works. The discussion was about the epic confusion about TOP and DISTINCT.