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
By ReviewMyDB
The T-SQL Tuesday #201 round-up: nine bloggers on whether temp tables are a friend...
By Steve Jones
I have been experimenting with MCP servers in a few ways, including the Redgate...
By Zikato
I deployed a schema change to 30 servers using multi-server query and deploy-at-low-priority. Small...
Comments posted to this topic are about the item Admin Rights for Everyone
Comments posted to this topic are about the item Kerberos Authentication for Aurora PostgreSQL:...
Comments posted to this topic are about the item RegEx Functions I
Which of these RegEx functions need compatibility level 170 in SQL Server 2025?
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