4 Improving Cardinality Estimation Accuracy

When SQL Server’s estimated number of rows per operator are reasonably close to the actual number of rows, you’re likely getting a good plan. It may not be a fast plan, but it’ll accurately reflect the (possibly large) amount of work required. You can still reduce the amount of work done by changing the query or the…

To access this incredible, amazing content, you gotta get Live Class Season Pass, Live Class Season Pass PLUS Lab VM, Fundamentals of Query Tuning or Recorded Class Season Pass, or log in if you already shelled out the cash.

When SQL Server’s estimated number of rows per operator are reasonably close to the actual number of rows, you’re likely getting a good plan. It may not be a fast plan, but it’ll accurately reflect the (possibly large) amount of work required. You can still reduce the amount of work done by changing the query or the...
To access this incredible, amazing content, you gotta get Live Class Season Pass, Live Class Season Pass PLUS Lab VM, Fundamentals of Query Tuning or Recorded Class Season Pass, or log in if you already shelled out the cash.
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