Banker’s Rounding. What is it good for?
An in depth look at the implications of using Banker's Rounding.
2020-06-15
15,410 reads
An in depth look at the implications of using Banker's Rounding.
2020-06-15
15,410 reads
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)
5,310 reads
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
7,415 reads
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)
7,822 reads
By Steve Jones
We’ve been doing some events as part of the Redgate Roadshow, and at one...
By James Serra
As I have mentioned in prior blog posts, I have been writing a data...
By alevyinroc
I’m happy to announce that I will be speaking at SQL Saturday Boston on...
Hi, This is my table and data, CREATE TABLE [dbo].[rpt_AR_StatementOfAcct_003]( [Id] [int] IDENTITY(1,1) NOT...
Some of our databases are getting be close to 2 terabytes. We are backing...
I'm working on a data analysis project in Python and need to calculate both...