Performance Tuning

Optimize Your SQL by Reformulating the Spec

  • Article

As SQL developers, we tend to think of performance tuning in terms of crafting the best table indices, avoiding scalar and table valued functions, and analyzing query plans (among other things). But sometimes going back to the spec and applying some properties of elementary math can be the best way to begin to improve performance of SQL queries which implement mathematical formulas. This article is a case study of how I used this technique to optimize my SQL implementation of the Inverse Simpson Index.

5 (2)

2019-09-12

2,793 reads

The Basics - Level 1 of the Stairway to Query Store

  • Stairway Step

Introduction Instead of going straight into the topic of the Query Store, I would like to start this Stairway Series by mentioning a few performance tuning scenarios that are very common to production DBAs. I think most of us have been in one of these situations at some time: An application experiencing slowness after a […]

5 (3)

2019-05-13

3,437 reads

Blogs

Daily Coping 10 Jul 2020

By

I’ve started to add a daily coping tip to the SQLServerCentral newsletter and to...

Daily Coping 9 Jul 2020

By

I’ve started to add a daily coping tip to the SQLServerCentral newsletter and to...

Refreshing a Power BI Dataset in Azure Data Factory

By

I recently needed to ensure that a Power BI imported dataset would be refreshed...

Read the latest Blogs

Forums

Controlling Intelligent Query Processing Features

By Kathi Kellenberger

Comments posted to this topic are about the item Controlling Intelligent Query Processing Features,...

To use the same function to pass table name as a parameter

By Kenean

I have this function, but I wanted to pass a table so as to...

Create SQL Login to View only one database on server

By yogi123

Hi All, I have one task to create a login, and user need to...

Visit the forum

Ask SSC

SQL Server Q&A from the SQLServerCentral community

Get answers