2024-11-25
176 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
18,544 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)
5,388 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
7,496 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)
8,112 reads
Blogs
Why Optimize CPU for RDS SQL Server is a game changer
One feature that I have been waiting for years! The new announcement around optimize...
Performance tuning KubeVirt for SQL Server
Following on from my last post about Getting Started With KubeVirt & SQL Server,...
T-SQL Tuesday #193 – A Note to Your Past, and a Warning from Your Future
By DesertDBA
I haven’t posted in a while (well, not here at least since I’ve been...
Forums
Change Tracking – Troubleshooting
I have change tracking configured in several databases, in QA and production environments, and...
is there a no code way to limit an ssis extract from excel to the 1st 21 rows?
is there a no code way to limit an ssis extract from excel to...
Pivot but preserve all rows on Aggregate column
Hello Need help in pivoting this data set, the Pivot takes MIN/MAX on a...
Question of the Day
What is the PRODUCT
In SQL Server 2025, what does this return?
CREATE TABLE Numbers ( n INT) GO INSERT dbo.Numbers ( n ) VALUES (1), (2), (3) GO SELECT PRODUCT(n) FROM dbo.NumbersSee possible answers