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SQLServerCentral Editorial

The Double-Edged Sword of AI and Data Democratization

  • Editorial

Agentic AI is often hailed as a game-changer by organizations, bringing autonomous decision-making, intelligent automation, and powerful predictive capabilities. However, as organizations rush to leverage these technologies, those dealing with critical data in relational databases, documents and datasets, especially personally identifiable information (PII) face a harsh reality: moving AI projects from proof-of-concept to production is […]

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2025-08-06

156 reads

SQLServerCentral Article

Yet another Date Dimension

  • Article

Evolution of code The thing with any bit of code that has been around for a while, is that when change comes along, the tendency is to cater for the change by adding new stuff, while nothing gets taken away.  Some stuff has  definitely been taken away from this Date Dimension, but some historical artefacts […]

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2025-09-02 (first published: )

3,049 reads

SQLServerCentral Article

Advanced SQL Server Page Forensics: Detecting Page Splits and Allocations with DBCC PAGE

  • Article

Page splits are an often-overlooked performance killer in SQL Server. In this article, we take a forensic look at how serial inserts differ from mid-table inserts, revealing why inserting rows out of order causes hidden page splits, increased IO, and fragmentation. Using a wide-column table, we demonstrate both scenarios and decode their impact with page-level analysis.

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2025-09-02 (first published: )

2,614 reads

SQLServerCentral Article

How to Access and Use Azure Key Vault Secrets in an Azure Devops Pipeline

  • Article

When you run a CI/CD pipeline, you often need confidential values like passwords, authentication tokens, service principal secrets etc. when you want to deploy a certain artefact. You don’t want to store those secrets directly in your pipelines as this might pose a considerable security leak. Instead, you either store them as secret variables, or […]

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2025-09-02 (first published: )

1,408 reads

SQLServerCentral Editorial

Hack Your Brain

  • Editorial

Now, let's be really clear up front, I don't mean getting a surgically implanted chip in your head, done on your kitchen table. Brain hacks are generally either, forming habits that are good for learning and concentration, changing how you do things to help enhance your brains function, eating differently in support of brain health, […]

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2025-08-02

121 reads

SQLServerCentral Editorial

Get Your Chores Done

  • Editorial

I grew up in a pretty rural environment, in the southern US, in what's considered the Old West (Jesse James, reportedly, had a hideout a few miles from my current home, the Daltons, Belle Star, I can keep going, all came through this part of Oklahoma). Here, we call our daily tasks, like taking out […]

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2025-08-01

104 reads

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Question of the Day

The string_agg function

We create the following table and then insert some records in it:

create table t1 (
   id int primary key,
   category char(1) not null,
   product varchar(50)
);

insert into t1 values
(1, 'A', 'Product 1'),
(2, 'A', 'Product 2'),
(3, 'A', 'Product 3'),
(4, 'B', 'Product 4'),
(5, 'B', 'Product 5');
What happens if we execute the following query in both Sql Server and PostgreSQL?
select id, 
category, 
string_agg(product, ';')
                 over (partition by category order by id
                 rows between unbounded preceding and unbounded following) as stragg
from t1;

See possible answers