Articles

SQLServerCentral Article

Understanding CRUD Operations on Tables with B-tree Indexes, Page-splits, and Fragmentation

Introduction Every DML transaction reads the data before it makes any changes. Not only during a SELECT query, but when you run any DML statement, insert, update, or delete, SQL Server first fetches a bunch of pages into the buffer pool locating the desired rows and changes them while synchronously writing to the transaction log […]

(6)

You rated this post out of 5. Change rating

2021-05-10

8,856 reads

SQLServerCentral Article

Optimize Your SQL by Reformulating the Spec

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.

(3)

You rated this post out of 5. Change rating

2021-05-07 (first published: )

5,476 reads

External Article

DevOps as a bludgeon

With both personal experience and the real world evidence to back it up, Grant Fritchey says, unequivocally, a well-implemented DevOps process helps the organization. But it's not always easy to bridge a siloed organization, and sometimes organizations adopt DevOps for the wrong reasons.

2021-05-07

Blogs

A New Word: Gnossienne

By

gnossienne– n. the awareness that someone you’ve known for years still has a private...

Exploring DiskANN: Part I: Understanding the Algorithm before the disk

By

How I used AI for this postChatGPT to generate images based on info specifically...

Learning Tool – Deepstash

By

A few months ago I started using Deepstash. Deepstash breaks books into the key...

Read the latest Blogs

Forums

When the Token Meter is Zero

By dbakevlar

Comments posted to this topic are about the item When the Token Meter is...

Understanding Temp Tables and Table Variables in SQL Server

By sabyda

Comments posted to this topic are about the item Understanding Temp Tables and Table...

The Data API Builder MCP Server Tools

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The Data API Builder MCP...

Visit the forum

Question of the Day

The Data API Builder MCP Server Tools

The Data API Builder MCP Server, v2.x, includes a number of tools. What actions can these tools perform in your database?

See possible answers