If you're rolling an SQL timer of your own, be a bit careful. On most relational databases it's quite possible for your first result(s) to come back extremely

If you're rolling an SQL timer of your own, be a bit careful. On most relational databases it's quite possible for your first result(s) to come back extremely quickly, but additional processing to be required to retrieve subsequent results - effectively a lazy evaluation. If you measure time to first result you may get an inaccurate picture of the cost of certain classes of query.