Estimated Execution Plans in Azure Data Studio

Dave Bland walks us through the “Explain” button in Azure Data Studio:

At first I was thinking maybe it is a short cut to help.  Nope, it is actually an easy way to get the estimated execution plan. The key is estimated execution plan. While in SQL Server Management Studio we have been able to easily get both the estimated or actual execution plan.

Just as a reminder, the actual execution plan requires the query to actually run. While the estimated plan will use statistics to generate the plan.  Generally, if the actual and estimated are capture very close to each other, you are more than likely not going to see a difference between the tow.

Now let’s talk about the Explain button.  It will return two things, the XML of the execution plan and a graphical representation of the execution plan.

There are a few differences between Azure Data Studio’s implementation of execution plans and SQL Server Management Studio’s.

Related Posts

Hidden Modals and SSIS

Jana Sattainathan knows how to make hidden modals rise to the surface in SSMS: I am not sure if run into this but I do often enough on my SSMS 17.9.1 version – suddenly, the SSMS window will not register any mouse-clicks although it will seemingly look fine. The reason is because there is a Modal […]

Read More

Creating Big Data Clusters with Azure Data Studio

Niels Berglund takes us through the creation of a Big Data Cluster by using Azure Data Studio to generate a notebook: I wrote a blog post back in November 2018, about how to install and deploy SQL Server 2019 Big Data Cluster on Azure Kubernetes Service. Back then SQL Server 2019 Big Data Cluster was in private preview, (CTP 2.1 I […]

Read More

Categories

August 2019
MTWTFSS
« Jul Sep »
 1234
567891011
12131415161718
19202122232425
262728293031