Cached Times

Tara Kizer sees a difference between the stored procedure cached time and an individual SQL statement’s cached time:

The app’s plan was cached the day before. But wait a second! My assumption was that it had recompiled this morning due to the updated stats.

Also check out Aaron Morelli’s link to an older blog post on how the plan cache works.

Related Posts

Table Variables And Parallelism

Erik Darling shows your brain on table variables: Inserts and other modifications to table variables can’t be parallelized. This is a product limitation, and the XML warns us about it. The select could go parallel if the cardinality estimate were more accurate. This could potentially be addressed with a recompile hint, or with Trace Flag […]

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Non-Blocking Aggregations

Daniel Hutmacher tilts at windmills: It’s not entirely uncommon to want to group by a computed expression in an aggregation query. The trouble is, whenever you group by a computed expression, SQL Server considers the ordering of the data to be lost, and this will turn your buttery-smooth Stream Aggregate operation into a Hash Match […]

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