Cardinality estimation (CE) is a process used by the query optimizer to estimate the number of rows returned by a query or sub-part of a query. These estimates rely on two underlying things: statistics about the data and a set of assumptions—known as the model.
2023-12-06
Welcome to part twenty of the plansplaining series. It has been a long time since I last wrote a plansplaining post, partly because of my health, but also for a large part because I was out of ideas. But recently I decided to dig a bit deeper into a feature that was released in SQL Server 2017 and that I had so far not played with: SQL Graph.
2023-12-06
If you aspire to drive Database DevOps at your company, regardless of the sector you work in, this webinar provides a unique opportunity to learn from experts in the finance sector who have successfully paved the way. Join us December 6th.
2023-12-04
Learn about various PowerShell commands that can be used to administer virtual machines on Amazon AWS.
2023-12-04
We are excited to share that there are several Accelerated Database Recovery enhancements in SQL Server 2022.
2023-12-01
On social media, I asked folks, “Why haven’t you disabled the SA account in your SQL Servers? Wrong answers only.” The results were pretty funny:
2023-12-01
In this article, we look at how using the Tablock hint in SQL Server could impact concurrency and block other sessions.
2023-11-29
Updating and deleting documents, creating queries, and managing query results in Microsoft's new NoSQL database-as-a-service.
2023-11-29
Learn about working with time series data using T-SQL code and how to add additional data to the data set for more in-depth data mining.
2023-11-27
November approaches again. For Europeans, that is a month like any other, for Americans, November means: Black Friday, with huge discounts!
2023-11-24
A while back I wrote a quick post on setting up key mappings in...
By Steve Jones
In 100 years a lot of what we take to be true now will...
Comments posted to this topic are about the item Missing the Jaro Winkler Distance
Comments posted to this topic are about the item 25 Years Later: What SQLServerCentral...
Comments posted to this topic are about the item Doing Good at SQL Server...
I upgraded a SQL Server 2019 instance to SQL Server 2025. I wanted to test the fuzzy string search functions. I run this code:
SELECT JARO_WINKLER_DISTANCE('tim', 'tom')
I get this error message:Msg 195, Level 15, State 10, Line 1 'JARO_WINKLER_DISTANCE' is not a recognized built-in function name.What is wrong? See possible answers