Here we will talk about one of the model assumptions, that was changed in the new estimation mechanism in SQL Server 2014 – Join Containment Assumption.| SQL Shack - articles about database auditing, server performance, data recove...
In this note, I’m going to discuss one of the most useful and helpful cardinality estimator enhancements – the Ascending Key estimation.| SQL Shack - articles about database auditing, server performance, data recove...
Here we continue looking at the Cardinality Estimator (CE) we explore join estimation algorithms, but this is not a comprehensive join estimation analysis.| SQL Shack - articles about database auditing, server performance, data recove...
In this blog post, we are going to talk about another cardinality estimation model enhancement in SQL Server 2014 – Overpopulated Primary Key (OPK).| SQL Shack - articles about database auditing, server performance, data recove...
In this blog post you are going to read explanation about how to use statistics to Compile a Query Plan in SQL Server 2017.| SQL Shack - articles about database auditing, server performance, data recove...
This article explores SQL Sort, Spill, Memory and Adaptive Memory Grant Feedback mechanism in SQL Server.| SQL Shack - articles about database auditing, server performance, data recove...
In this blog post, we are going to look at the new feature in SQL Server 2017 – scalar subquery simplification (CollapseIdenticalScalarSubquery).| SQL Shack - articles about database auditing, server performance, data recove...
In this post, we are going to look at the new feature in SQL Server 2017 – interleaved execution. You need to install SQL Server 2017 CTP 1.3 to try it.| SQL Shack - articles about database auditing, server performance, data recove...
In this blog post, you are going to read more about SQL Server 2017 and you will learn more on how to get a a Parallel Plan.| SQL Shack - articles about database auditing, server performance, data recove...
In this blog post, I continue the exploration of SQL Server 2017 and we will look at the nonclustered Columnstore index updates.| SQL Shack - articles about database auditing, server performance, data recove...
SQL Server 2017 brings a new query processing methods In this blog post, we will discuss the last of them – Adaptive Joins.| SQL Shack - articles about database auditing, server performance, data recove...
Dmitry Piliugin| SQL Shack - articles about database auditing, server performance, data recove...
In this blog post you are going to read explanation about two features Columnstore Indexes and Trivial Plan in SQL Server 2017.| SQL Shack - articles about database auditing, server performance, data recove...