In this article, I am going to explain fixing a problem related login failure error with SQL Server. The Problem One of the common error in the SQL Server error log is "Login failed for user 'DomainName\ServerName$'. Reason: Could not find a login matching the name provided. [CLIENT: <local machine>]". Even though it says that […]
Just like advances in artificial intelligence, I have heard that quantum computing is going to be a disruptive technology for our future. For instance, there’s the concern that it’s going to break/crack a lot of network encryption and potentially data encryption. What’s going to be affected, how long do we have, and what do I (and my organization) need to do to prepare for it?
Learn about the new ZSTD compression algorithm in SQL Server 2025.
Beneath the surface though, AI is just a tool that learns certain patterns and draws conclusions from information on the Web to answer questions, make decisions, or craft a code sample or two. Those that have used AI in the past will know that just as it’s capable of providing valuable information, AI tools can also generate inaccurate responses, and that’s why it’s important to use it wisely.
I'm actually writing this on my day off. I took a bunch of vacation around the holidays because I could, and because I don't take enough the rest of the year. Anyway, I'm just going to share how I've been spending my time (not counting time with the family, which I am certainly doing). I […]
The tally table is a valuable tool for a SQL Server developer, but how many of you understand how to create and use one?
I’ve used SQL window functions for years, but I’ve never fully understood framing. To truly master window functions, you need at least a basic grasp of framing and how to apply it to your queries. Framing is especially helpful when working with aggregate functions. How can you overcome this hesitation to try framing?
A little Christmas fun for you using the spatial features in SQL Server and SSMS.
With SQL Server 2012 Microsoft introduced the AlwaysOn Availability Group feature, and since then many changes and improvements have been made. This article is an update to another article, and will cover the prerequisites and steps for installing AlwaysOn in your SQL Server 2019 environment. Prerequisites Before implementing your AlwaysOn Availability Group (AG), make sure […]
It's time for T-SQL Tuesday #198! This month's topic is change detection. The post T-SQL...
By James Serra
Model Context Protocol, or MCP, is one of those technical ideas that sounds more...
When starting with AWS RDS Aurora for managing relational databases in the cloud, many...
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I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers