Collecting the Last Actual Plan for a Query

Gail Shaw explains a new Dynamic Management Function which works to get the latest execution plan for a particular query:

Getting the actual execution plan, that is the plan with run-time statistics for a query from an application has always been a little difficult. It’s fine if you can get the query running in Management Studio and reproducing the behaviour from the app, but that can be difficult.

There’s the query_post_execution_showplan event in Extended Events, but that’s a pretty heavy event and not something that I’d like to run on a busy server.

No more! SQL 2019 adds a new plan-related function to get the last actual plan for a query: sys.dm_exec_query_plan_stats.

Read on to see how to configure this, as well as a demo.

Related Posts

Table Variables and Parallelism

Erik Darling shows off a neat trick for inserting with parallelism into a table variable: One of the many current downsides of @table variables is that modifying them inhibits parallelism, which is a problem #temp tables don’t have. While updating and deleting from @table variables is fairly rare (I’ve seen it, but not too often), you at minimum need an insert […]

Read More

Adaptive Joins and Index Width

Erik Darling wants to pump your indexes up: Now, there’s an Extended Event that… Used to work. These days it just stares blankly at me. But since I’ve worked with this before, I know the problem. It’s that Key Lookup — I’ll explain more in a minute. Adaptive joins won’t do all the work for you, […]

Read More

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Categories

July 2019
MTWTFSS
« Jun  
1234567
891011121314
15161718192021
22232425262728
293031