Key Lookups and ColumnStore Indexes
Erik figures out why SQL Server really doesn't like combining these two things in a query plan.
The Cloud is Better In At Least One Way
Azure SQL Database has a lot of integrity checks. Probably more than your local instance.
Timing is Everything
Phil Factor on the wise habit of timing your database routines, to avoid relying on received wisdom about performance.
The Power of Python and SQL Server 2017
Python is new to SQL Server 2017. It is intended primarily to allow the use of Python-based machine-learning within SQL Server, but it can be used for far more than this, with any Python libraries or Frameworks. To provide an example of what is possible, Hitendra shows how to use the feature securely to provide intelligent application caching, where SQL Server can automatically indicate when data changes to trigger a cache refresh.
A Lightweight, Self-adjusting, Baseline-less Data Monitor
Can data alert us that something is going on, without baselines and thresholds?
The Blame Game
Equifax is blaming a single IT person for their data breach. Steve Jones worries this is a sign of things to come.
Statistics in SQL: Student’s t-test
Many undergraduates have misunderstood the name 'Students' in the t-test to imply that it was designed as a simple test suitable for students. In fact it was William Sealy Gosset, an Englishman publishing under the pseudonym Student, who developed the t-test and t distribution in 1908, as a way of making confident predictions from small sample sizes of normally-distributed variables. As Gosset's employer was Guinness, the brewer, Phil Factor takes a sober view of calculating it in SQL.
Network Configuration of SQL Server Always On Availability Groups in Azure
Implementing SQL Server Failover Clustering in Azure virtual machines differs in several aspects from its on-premises implementations. These differences reflect some of the unique characteristics of the storage and network infrastructure services in the Microsoft cloud environment. In this article, Marcin Policht looks at the networking aspects of clustered deployments of SQL Server 2016 in Azure.
Blogs
“We love to debate minutiae”
By Brian Kelley
I am guilty as charged. The quote was in reference to how people argue...
Advice I Like: Knots
By Steve Jones
Learn how to tie a bowline knot. Practice in the dark. With one hand....
Shifting Mindsets: Why FinOps is Essential for Cloud Efficiency
By HeyMo0sh
As a DevOps practitioner, I’ve always focused on performance, scalability, and automation. But as...
Forums
how to write this query?
Hi everyone I asked this earlier but the desired outcome is a bit different...
Windows logins for users migrated from DomainA to DomainB
Hi, I have a SQL Server instance where users connect to via Windows Authentication,...
Multiple Deployment Processes
Comments posted to this topic are about the item Multiple Deployment Processes
Question of the Day
Upgrading Admin Queries
I have a query from a former DBA that we run on SQL Server 2025 to check on database metadata. This query references sys.sysaltfiles. I want to refactor this code to be more modern. Which DMV should I reference instead?
See possible answers