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.
2014-08-08
7,706 reads
Articles
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.
2014-08-08
9,485 reads
Introducing the Columnstore Index
A brief overview of Columnstore index and its usage with an example
2014-08-07
8,312 reads
What do you consider important when performance testing?
What data specific considerations do you make when preparing for performance testing?
2014-08-07
261 reads
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.
2014-08-07
11,971 reads
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.
2014-08-06
10,471 reads
Linked Server Tribulations In SQL Server
In this article, Thomas chronicles the difficulties of troubleshooting a linked server set up, with helpful tips and an exposé of a Linked Server UI flaw.
2014-08-05
5,946 reads
Call for Speakers - SQL Saturday Pittsburgh
SQL Saturday #315 in Pittsburgh (Oct 4th) is looking for speakers - if you've got a SQL topic you want to talk about, submit it and you may get to share with your peers.
2014-08-05
8,910 reads
How to test what a SQL Server application would do in the past or in the future with date and time differences
For date and time based testing, I use what I like to call "mock-time". The mock-time starts at what ever I set it to, but then advances along with the regular system clock. Andy Novick shows how that would work.
2014-08-05
9,532 reads
SQL Monitor Custom Metric: Schema Modified
This metric creates an alert that will be raised when something is added to the schema, or the existing schema is modified.
2014-08-05
8,628 reads
Blogs
Methodology for dealing with bad data in production
By Brian Kelley
Pinal Dave wrote up his methodology for what to do when you discover bad...
How to Provision an Azure SQL Database
Aside from spinning up a SQL Server instance container, the free Azure SQL Database...
Claude finds two cryptographic weaknesses (but the sky isn’t falling)
By Brian Kelley
If you haven't seen the announcement, Anthropic was able to utilize Claude (Mythos Preview)...
Forums
Why SQL Server Database Attach fails and how to repair it
Comments posted to this topic are about the item Why SQL Server Database Attach...
Fixing P1 Queries
Comments posted to this topic are about the item Fixing P1 Queries
BIT_COUNT() IV
Comments posted to this topic are about the item BIT_COUNT() IV
Question of the Day
BIT_COUNT() IV
In SQL Server 2025, I run this code:
select bit_count('A')
What is returned? See possible answers