How to Drop One Plan from Cache
While presenting this weekend at SQL Saturday #117 in Columbus, OH (great event, if you missed it, you missed it), I had what I thought was a little piece of throw-away code, but several people from the audience asked about it. Here it is: DBCC FREEPROCCACHE(0x05000700618F532C40E190CE000000000000000000000000) ; Not much to it is there? The trick is, starting with SQL Server 2008, you can use the FREEPROCCACHE command to drop a single plan from the cache rather than completely clearing out the cache. I use it to show compile times & bad parameter sniffing and other things. You can use it to get rid of a plan in cache for whatever you might need to do that. You certainly don't need to drop the entire procedure cache as people so frequently…