2025-12-22
10,996 reads
Articles
Get ChatGPT’s Advice On Your Queries with sp_BlitzCache.
First off, I understand if you read the headline and you have a knee-jerk reaction. I totally understand that there are a lot of people out there who hate AI, and believe me, I hate most uses of it. Lots of its advice can be misleading at best, and absolute garbage at worst.
2025-12-22
T-SQL in SQL Server 2025: The || Operator
I have been working in various computer languages for a long time. When I saw that the || operator was coming, I was a bit confused as to why we needed this, and how it would work. After all, this is a part of other languages. I decided to dig in a bit. This is […]
2025-12-19
8,770 reads
SQL Server 2025 Product() Function Examples
SQL Server 2025 includes new features and enhancements. In the previous SQL Server 2025 tips, we have explored many new features. Have you explored the new Product() function? If not, this will walk you through the Product() function with several examples.
2025-12-19
15 Practical Tips for Securing SQL Server
Securing SQL Server isn’t complicated, but it does require consistent attention to the areas where real risks arise, such as privileges, configuration, encryption, patching, and monitoring. This article outlines 15 practical, high-impact steps you can take to harden your SQL Server environment.
2025-12-17
Think LSNs Are Unique? Think Again - Preventing Data Loss in CDC ETL
When using only an LSN to track which changes you have processed, you can lose data. This article shows how to avoid this problem.
2025-12-15
2,828 reads
Query Exercise Answer: Generating Big TempDB Spills
In last week’s Query Exercise, I challenged you to play some code golf to generate big spills with tiny T-SQL.
2025-12-15
Working with JSON/JSONB Data in PostgreSQL using Python
This article discusses how to work with JSON data in PostgreSQL using Python.
2025-12-12
767 reads
How to Monitor and Optimize Batched Deletion Processes in SQL Server
Batched deletions are a common strategy in SQL Server to manage large datasets without overloading the system, but poorly tuned deletes can cause blocking, long-running transactions, and heavy log usage. Learn how to monitor and optimize these processes for smooth, efficient database performance.
2025-12-12
Running SQL Server in Local Containers with VSCode MSSQL Extension
You are a developer using SQL Server for your applications, and you need to quickly setup a local development environment. How can you make sure the environment is OS agnostic, so it can run on any operating system? Let’s see how we can quickly create a local container to run SQL Server using the VSCode MSSQL Extension.
2025-12-10
Blogs
T-SQL Tuesday #202 SQL Server Outage You’ll Never Forget: A Roundup
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
A Last Minute Trip to the EU
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
Part 3 of 3: Tuning DiskANN — R, Alpha, L, Beam Width, Recall and Latency
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
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Question of the Day
ORDER BY alias
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers