What was your coolest SQL optimization, on a slow performing query?

Question

Just speaking to a colleague of mine. He was walking with a hop in his step, on the way to the coffee machine.

I asked him \"what\'s with the \'swarmy\' walk?\", he said

Answer 1

Sorry, I don't tend to get a buzz from that sort of thing but most situations have been pretty basic, monitoring performance of queries and adding indexes to speed them up.

Now increasing the speed of "real" code that I've written by changing data structures and algorithms within the class, that's where I get my buzz (and reputation a the go-to man for performance fixes at work).