Performance tuning

SQLServerCentral Article

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 (3)

2021-05-07 (first published: )

5,253 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 […]

4.8 (5)

2020-10-07 (first published: )

6,041 reads

Blogs

Hyperconverged storage tuning tip for SQL Server

By

We all (should) know that running SQL Server in hyperconverged virtual environments, both on-premises...

Daily Coping 25 Nov 2022

By

Today’s coping tip is to connect with someone from a different generation. This tip...

Snowflake Classic UI vs Snowsight

By

This blog post is not about which User Interface is better, Classic or Snowsight...

Read the latest Blogs

Forums

Can someone explain where non - clustered index is stored?

By yourjobismine

I am learning non-clustered and clustered indexing. When reading this article https://www.sqlshack.com/what-is-the-difference-between-clustered-and-non-clustered-indexes-in-sql-server/#:~:text=Clustered%20indexes%20only%20sort%20tables,involve%20any%20extra%20lookup%20step. came across this...

KBC Sim Card Lucky Draw 2022–2023

By articlewriter

Two competitions, KBC Sim Card Lucky Draw 2022–23 and KBC WhatsApp Number Lucky Draw...

Null value when checking unused indexes

By Bruin

I'm using this query to check if I have any unused indexes.. One of...

Visit the forum

Ask SSC Logo Ask SSC

SQL Server Q&A from the SQLServerCentral community

Get answers