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A decade of helpful technical content

Less Than Dot is a community of passionate IT professionals and enthusiasts dedicated to sharing technical knowledge, experience, and assistance. Inside you will find reference materials, interesting technical discussions, and expert tips and commentary.

Replacing Trace Flags 1204 and 1222 with the Extended Events system_health Session

Deadlocks in a SQL Server instance are problematic. They can cause application errors, slow performance, and unhappy users. As a DBA or developer, it’s very helpful to be able to find deadlocks, review what caused them, and fix it permanently, if possible. How do you find deadlocks? Over the years, there have been various methods, […]

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Adding User-Managed API Keys to ASP.Net Core 2 w/ Cosmos DB

I’m building the foundation for an ASP.Net Core 2 site with Cosmos DB as the back-end store and want to build in the idea of user-manageable API keys. In the past two posts, I’ve added interactive registration and login to the application using built-in Cookie and Twitter middleware on top of custom authorization logic and […]

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Adding Twitter Authentication to an ASP.Net Core 2 site w/ Cosmos DB

I’m building a B2C website with Cosmos DB as the back-end store and starting with common elements like Authentication. In my prior post, we connected the Cookie Middleware with custom membership logic and a standard username/password login method. In this one, we’ll be extending the system to also allow users to register and login via […]

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Custom Authentication in ASP.Net Core 2 w/ Cosmos DB

I’m building a B2C website with Cosmos DB as the backend store. This site will have a number of different authentication mechanisms, but I’m newer to ASP.Net Core 2 and the authentication changes since the prior version so I’m going to start with a basic Cookie and Login authentication system. This is the second post […]

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ASP.Net Core 2 w/ Cosmos DB: Getting Started

I am building the basic foundation for a B2C web application, using ASP.Net Core 2 and Cosmos DB. Along the way I’m going to need authentication, source control, CI/CD, … but first I have to start learning what’s changed in ASP.Net Core 2 and how to use Cosmos DB beyond the 5-minute console application demo. […]

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LaunchReady: Don’t Get Distracted, Getting Stuff Done

I built LaunchReady in my spare time, continuing to work fulltime during the day, spend time with the family in the evening, and jump online or hit the trails occasionally with friends. I also had a bunch of ideas, which served as interesting distractions from making it actually work. In this post I’ll share a […]

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“North to Alaska”

I’m excited and privileged to announce that I’ll be a Technical Lead on Tech Outbound Alaska this August! Tim and Amy Ford have been putting together high-quality SQL Cruise events since 2010. I’ve attended three, and each one has been better than the last. (Make sure to read about my experiences on SQL Cruise Caribbean 2015 […]

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LaunchReady: Focus on the Customer

When I started LaunchReady, it didn’t even have a name. I had a general idea of what I wanted a system to do, but didn’t have a good handle on the target audience and what they would want. I had some general ideas on how to build the software affordably, but nothing with a total […]

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Meet LaunchReady: A SaaS Product That Almost Was

Once upon a time, there was a growing organization that had the usual challenges as new folks came on board and started trying to learn a complex domain. At the time, I imagined a product that combined UI Automation and a focus on fast feedback to serve as a safety net for these folks, but […]

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SQL is Hard (still): Reviving a stale application

Several years ago, I launched SQLisHard to help folks learn SQL. Some folks learn well from books or videos, but others learn best by getting in there and running queries. I monitored and tweaked things for about a year, trying to get the first set of exercises smoothed out. Then, like many folks, I was […]

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