How to Create a Corrupt SQL Server Database
This article details how to create a corrupt SQL Server database for testing purposes
SQL Saturday #327 - Johannesburg
SQL Saturday is coming to Johannesburg on August 30. Join in for a free day of SQL Server training and networking. Register while spaces are available.
The SQL of Membership: Equivalence Classes & Cliques
It is awkward to do 'Graph databases' in SQL to explore the sort of relationships and memberships in social networks because equivalence relations are classes (a set of sets) rather than sets. However one can explore graphs in SQL if the relationship has all three of the mathematical properties needed for an equivalence relationship.
Introducing the Columnstore Index
A brief overview of Columnstore index and its usage with an example
What do you consider important when performance testing?
What data specific considerations do you make when preparing for performance testing?
The Road To Hell - new article from the DBA Team
Joe Celko & Chris Date guest as the sinister Relational Police in this new DBA Team adventure. Can the DBA Team save another doomed database? Find out.
Getting Started with Hashing in SQL Server
Encryption brings data into a state which cannot be interpreted by anyone who does not have access to the decryption key, password, or certificates. Hashing brings a string of characters of arbitrary size into a usually shorter fixed-length value or key. Here's how to get started using it.
Getting It Right First Time. Almost?
Mistakes happen but how can we minimize them and deal with them whey they do happen?
Blogs
Identity Columns Can’t Be Updated: #SQLNewBlogger
By Steve Jones
I’m not sure I knew identity column values could not be updated. I ran...
Rolling Back a Broken Release
By Steve Jones
We had an interesting discussion about deployments in databases and how you go forward...
A bespoke reporting solution doesn’t have to cost the earth
By ChrisJenkins
You could be tolerating limited reporting because there isn’t an off the shelf solution...
Forums
Can someone please explain what happens?
I have mentioned this several times over several years. Can someone please help me...
SELECT COUNT(DISTINCT) returns null when nothing is found instead of 0
SELECT COUNT(DISTINCT Component) AS Found FROM tblComponents WHERE(Component NOT LIKE '%[a-z]%') AND(LTRIM(RTRIM(Component)) = 'GM13622')...
Remotely Engineer Fabric Lakehouse objects: The Fabric Modern Data Platform
Comments posted to this topic are about the item Remotely Engineer Fabric Lakehouse objects:...
Question of the Day
Creating JSON III
In a SQL Server 2025 table, called Beer, I have this data:
BeerIDBeerName 1Becks 2Fat Tire 3Mac n Jacks 4Alaskan Amber 8KirinI run this code:
SELECT JSON_OBJECTAGG(
BeerID: BeerName )
FROM beer;
What are the results? See possible answers