DAX is not only an expression language, but also a query language and, when it comes to performance, the xVelocity in-memory engine is second to none. Scanning fact tables and performing leaf-level computation happens in a matter of milliseconds. Nevertheless, as with any other language, you can write good DAX or bad DAX, depending on your understanding of the engine internals. This session introduces DAX as a query language, showing the different ways of querying with DAX using real-world data. Some queries will be fast, others will need optimizations. Many practical examples based on common patterns and an analysis of the query plans will show how to get the best out of DAX.
Graphically intensive user interfaces are growing increasingly more common in modern apps, and on the Windows platform, DirectX is a key enabler for this trend. Whether you use DirectX to create an interactive UI for a Windows Store app or to build a 3D game, having the right tools will make your job easier. In this video, we take a tour of what’s new in Visual Studio 2013 for building DirectX apps, including refreshed project templates, samples and feature additions to Graphics Diagnostics.