Debugging and Optimizing DAX

Previous chapters have focused on how to perform common and uncommon DAX calculations for a wide variety of purposes. However, these DAX recipes did not magically spring into existence fully formed. Significant time and effort went into the creation of these DAX recipes. And you must not discount the loss of more than a few previously well-connected hairs from the top of my head. Any reasonably complex DAX calculations inevitably require a certain amount of troubleshooting and debugging in order to make the calculation work correctly and account for any and all boundary cases that might occur. This chapter provides numerous tools and techniques that I used in the creation of the DAX recipes within this book, including recipes for troubleshooting, debugging, optimizing, and handling various errors. You can use these same tools and techniques when troubleshooting...