Learning Tree International Blog

User-defined scalar functions (scalar UDFs) provide SQL Server developers with an excellent means to organizer and re-use code. Unfortunately, these benefits often come at the price of poor, and in many cases horrendous, performance. Froid is a technology arising from Microsoft Research that addresses these performance problems with novel optimization techniques. In SQL Server 2019, […]

Logic is an important aspect of programming and two important theorems in logic can be a big help to programmers. Basics of computer logic In software, logic is generally found in an if statement. This implements the idea that if some condition is true, then do something. For example, If the user clicks a link […]

Are your the sort of person who likes the good news first or the bad? The good news is that Tensorflow 2.0, currently in beta, has integrated the Keras API. This means that developers looking to create machine learning and AI models in tensorflow can focus more on architecture and design and less on details […]

What is Keras? Keras is an API (Application Program Interface) originally designed to allow Tensorflow developers to focus their attention on the deep-learning problems of interest rather than concern themselves with minutia of how to implement their model in Tensorflow. Since its introduction, Keras has become popular not only among Tensorflow developers, but also among […]

Like many others, I wrote my first DAX measures in Excel Power Pivot. It seemed so natural to add measures in the editing area associated with the fact table I never considered any other way. But while measures specify one or more tables in their code definition, there is really no restriction on “where” they […]