2024-11-25
184 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
18,708 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)
5,403 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
7,530 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)
8,123 reads
Blogs
T-SQL Tuesday #199 Invitation: Back to on-prem?
It’s time for T-SQL Tuesday again! And we’re almost to number 200! T-SQL Tuesday...
Data Skew in Data Engineering: What It Is and How to Fix It
You kick off a distributed job expecting it to finish in minutes — but...
Error Deploying GraphQL in Fabric: dm_exec_describe_first_result_set
A while ago we suddenly had an error while trying to deploy one Fabric...
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Question of the Day
Representing Money
Which types of currency does the money data type represent?
See possible answers