Free eBook: Complete Showplan Operators
Dal portale Simple-Talk (Red-Gate) è possibile scaricare gratuitamente l’eBook: Complete Showplan Operators di Fabiano Amorim.
Il libro tratta i più importanti operatori logici coinvolti nei piani di esecuzione, spiegandone il funzionamento e i motivi che spingono Query Optimizer alla scelta di un operatore rispetto agli altri.
Riporto di seguito la prefazione di Grant Fritchey.
Preface
Writing good TSQL code is not an easy task. Then you submit the code to the query optimizer and strange things happen. The one good view you have into what the optimizer decided to do is provided by the execution plans. Understanding execution plans is a lot of work. Trust me on that. What you need to really understand your queries is as much knowledge as you can get. That’s where this excellent collection of articles on some of the more common execution plan operators comes in.