Cognitive Coverage
Understanding the scope of what AI and humans are changing in your code going to be an important part of your future as a tech professional.
How We Handled a Vendor Retry That Loaded Twice in Snowflake
The vendor file arrived twice overnight, Snowflake loaded both copies without complaining, and finance found the problem before the pipeline did.
Add New Disk to Windows Failover Cluster for SQL Server
I have a 2-node failover cluster instance running on Windows Server 2019 Standard edition. I have a requirement to add a new SAN disk to the SQL Server failover cluster instance (FCI), and then I need to move a user database to that newly added shared disk. Can you show the steps required to add a new disk to the FCI and move the user database?
Parameter Sniffing in Production: How a 200ms Query Became a 90-Second Outage
Learn how parameter sniffing appeared in a real system and how the issues were solved.
SQL Server 2025 Build List
This is a list of the builds for SQL Server 2025. There are other build lists available here. A list of all the builds that I can find and install on my Build VM. If you find a build not listed here, please let the webmaster know (webmaster at sqlservercentral.com). All builds are listed in reverse […]
Never ship a broken semantic model again: how to build automated tests in Power BI with user-defined functions
User-defined functions (UDFs) in Power BI let you build reusable, automated tests for your semantic models — so you catch broken measures, duplicate rows, and faulty relationships before they reach your reports. This article walks through how to use UDFs alongside PQL.Assert to standardize testing across your team, and how to automate those tests with Power Automate or a Fabric Notebook.
SQL Server Enum Implementation: A Single-Row View Strategy for Avoiding Magic Values
Learn about an alternative strategy for avoiding hardcoded literal values in SQL Server queries by using single-row views designed to mimic enum behavior.
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
Question of the Day
Getting the Average
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers