If you've ever wondered what happens to your queries if you're not conscientious about creating indexes, then Fabiano Amorim has yet another nugget of Execution Plan wisdom for you. The Query Optimizer's solution is to use the Nonclustered Index Spool, and we're about to learn why.… Read more
Continuing to illuminate the depths of SQL Server's Query Optimizer, Fabiano shines a light on the sixth major Showplan Operator on his list: the Lazy Spool. What does the Lazy Spool do that's so special, how does the Query Optimizer use it, and why is it so Lazy? Fabiano explains all...… Read more
