2024-11-25
205 reads
math
Banker’s Rounding. What is it good for?
An in depth look at the implications of using Banker's Rounding.
2020-06-15
18,881 reads
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.
2021-05-07 (first published: 2019-09-12)
5,533 reads
SQL for 8-year-old Math…But Be Careful of Implicit Type Conversion
How we can use SQL to solve a math problem published in The Guardian...but with a caution about implicit type conversion.
2015-07-14
7,592 reads
Integer left and right shift
3 functions that implement the left (<<), right (>>) and unsigned right (>>>) shift operators, commonly found in C-style languages.
2012-02-15 (first published: 2011-12-30)
8,152 reads
Blogs
DiskANN Experiment — Exploring Entry Points and Graph Neighborhoods
Introduction I was experimenting with vector search in SQL Server 2025 using approximately 3.8...
T-SQL Tuesday #203: Risk and Reward
By Steve Jones
This is timely, as I’m currently on a boat in the Adriatic taking a...
dataMinds Connect 2026 – Slides & Scripts
You can find the slides and SQL scripts for my session “Spice up your...
Forums
Communication, For Incidents and Life
Comments posted to this topic are about the item Communication, For Incidents and Life
PostgreSQL psql Meta Commands: Tables
Comments posted to this topic are about the item PostgreSQL psql Meta Commands: Tables
Building a Support Ticket Triage Report with IIF() and CHOOSE() in SQL Server
Comments posted to this topic are about the item Building a Support Ticket Triage...
Question of the Day
PostgreSQL psql Meta Commands: Tables
Which of the following psql meta commands (also called backslash or slash commands) will provide information about tables within a database?
See possible answers