How to Query JSON Data Quickly in SQL Server, Part 2: SQL Server 2025
SQL Server 2025 and .NET 10 bring several new improvements to storing JSON natively in the database and querying it quickly.
2025-12-05
Articles
SQL Server DBaaS Vulnerability: Decrypting System Code & Exfiltrating User Data
Security in cloud environments is both challenging and fascinating, particularly for Database-as-a-Service (DBaaS) offerings like Amazon RDS, GCP CloudSQL and Alibaba ApsaraDB RDS. The cloud vendor acts as the system administrator, managing the operating system, patching, and backups, while the user manages their data and databases.
2025-12-03
Build a Test Lab of SQL Server 2025 on Windows Server 2025 using Hyper-V Virtual Machines
Create your own test lab on Hyper-V to evaluate SQL Server 2025 and Windows Server 2025
2025-12-01 (first published: 2025-09-19)
2,079 reads
Troubleshooting Common SQL Server Errors: 823, and 824
Learn about the critical 823 and 824 errors in SQL Server and how to deal with them in this article.
2025-12-01
1,318 reads
Random Number Generator in SQL using Marsaglia Polar
How can we build a random number generator using Marsaglia Polar method in SQL Server without the use of external tools?
2025-12-01
T-SQL in SQL Server 2025: The PRODUCT Function
Earlier this year at SQL Saturday Austin 2025, Conor Cunningham gave a keynote that discussed the engineering efforts in the Austin office around SQL Server. One of the things he mentioned was PRODUCT(), which was written there and added to SQL Server 2025 to help with the GDP calculation for the US government. Yep, that's […]
2025-11-28
8,116 reads
How to Query JSON Data Quickly in SQL Server, Part 1: Pre-2025
Before SQL Server 2025, if you want to store JSON data in Microsoft SQL Server or Azure SQL DB, and you want fast queries, the easiest way is to:
2025-11-28
Identify Unused Tables in SQL Server and Azure SQL
This article presents a way to discover those tables that are unused over a period of time, along with suggestions on how to get rid of these tables.
2025-11-26 (first published: 2025-10-15)
14,407 reads
SQL Declare Variable Code Examples
This tutorial will discuss using variables with SQL DECLARE along with various examples.
2025-11-26
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 […]
2025-11-25 (first published: 2020-11-24)
51,572 reads
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UNISTR Escape
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SQL Art: I Made a Christmas Card In SSMS
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Question of the Day
UNISTR Escape
In SQL Server 2025, I run this command:
SELECT UNISTR('*3041*308A*304C\3068 and good night', '*') as "A Classic";
What is returned? (assume the database has an appropriate collation)
A: 
B: 
C: 
See possible answers