Fixing "Login failed for user" error in SQL Server
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 […]
Preparing SQL Servers and Data for Quantum Computing
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?
SQL Server 2025 Backup Compression Algorithm
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Making AI Talk to Your Database: AI-Powered Database Queries Made Simple
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.
Happy Holidays, Let's Do Nerdy Stuff
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
The tally table is a valuable tool for a SQL Server developer, but how many of you understand how to create and use one?
Controlling SQL Window Functions with Framing
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?
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Question of the Day
Creating a JSON Document III
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;
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