Sometimes we cannot improve query performance because we don’t have control over the code. Consider a query that is generated by Entity Framework (EF) from the application and you do not have access to the source code. The main question is how you can improve SQL Server query optimization for a poorly performing query?
2026-01-05
In this article, I will provide a set of examples to show case the use of OUTPUT clause for INSERT and DELETE statements.
2026-01-02 (first published: 2017-05-25)
308,698 reads
This article covers the 10 key concepts developers should understand to avoid surprises and to use the model database intentionally.
2026-01-02
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 […]
2025-12-31 (first published: 2020-11-24)
54,893 reads
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?
2025-12-31
Learn about the new ZSTD compression algorithm in SQL Server 2025.
2025-12-29
2,162 reads
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.
2025-12-29
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?
2025-12-26
A little Christmas fun for you using the spatial features in SQL Server and SSMS.
2025-12-24
4,215 reads
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 […]
2025-12-24 (first published: 2025-11-25)
1,330 reads
By SQLPals
Beware of Generic SQL Server License Keys (What to Use Instead) ...
By Brian Kelley
Professor Patrick Winston of MIT used to give a one-hour talk about how to...
By Steve Jones
One of the popular features of Redgate Monitor has been the ability to add...
Comments posted to this topic are about the item Creating a JSON Document II
By VishnuGupthanSQLPowershellDBA
Comments posted to this topic are about the item Backing Up Azure Key Vault...
Comments posted to this topic are about the item Every Database Has Problems
I want to create a JSON document that contains data from this table:
TeamID TeamNameCity YearEstablished 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960If I run this code, what document(s) is/are returned?
SELECT json_objectagg( n.city : n.TeamName) FROM dbo.NFLTeams;See possible answers