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

Splitting one ridiculously long stored procedure, which did a great deal of "if it's after 5 pm, return this bit of sql" and which took in excess of 20 seconds to run, into a set of stored procedures that were called by one controlling sp, and got the times down to subsecond responses.