Wayne Sheffield

My blog about SQL Server

Browsing Posts in Performance

Scalar UDF Inlining, introduced in SQL Server 2019, promises to improve the performance of Scalar UDFs. Let’s look into the performance gains this offers.

SQL Server 2019 introduces Scalar UDF Inlining, which is supposed to improve the performance of Scalar UDFs. This post investigates this new feature.

Performance testing various methods for removing the time element from the datetime data type. While they all execute quickly, one method is faster than the others.

TCP Chimney Offload transfers network traffic workload processing from the CPU to a network adapter that supports TCP Chimney Offload. This feature was introduced with Windows Server 2003 SP2, and it was called the Microsoft Scalable Networking Pack (SNP). Since Windows Server 2008, these features are a base part of these operating systems, so they […]

This post is re-published from my original post on SQL Solutions Group. I hope that you enjoy it. In my last article, I started off talking about checking various settings that make a performance difference prior to jumping into query tuning. This article continues the investigation into performance affecting settings, by jumping straight into the […]

This post is re-published from my original post on SQL Solutions Group. I hope that you enjoy it. When investigating a performance issue, the desired end result is already known… you need to make the queries run faster. It’s been my experience that most performance problems involve optimizing the query that is being run—sometimes the […]

A while back, I wrote a blog post showing the differences (including performance) between Inline Table-Valued Functions (ITVF) and Multi-Statement Table-Valued Functions (MSTVF). Since then, whenever I speak about ITVFs / MSTVFs, I’m frequently asked about how Scalar Functions (SF) perform. My stock answer has always been that they perform in a similar manner to […]

For those of you that know me, you know that I enjoy learning, and passing on what I have learned to others. As it turns out, this whole presenting thing has been an interesting path for me. (You can read more about the early disastrous presentations in my life here.) As I have started to […]

Execution Plan Operators to investigate when having performance problems with SQL queries.

Next up on the SQL Server 2012 Performance testing circuit: Gap Detection. You know, where you find missing values from a table of sequential numbers. SQL Server 2012 introduces the LEAD function, which I’ve previously blogged about here. In that blog post, I covered how to do Gap Detection using the LEAD function. Now, it’s […]

%d bloggers like this:

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.