Data analysis expressions (DAX) is the formula language of Power Pivot. Learning the DAX language is key to empower Excel users so they can take advantage of these new Business Intelligence (BI) capabilities. This volume clearly explains the concepts of Power Pivot while at the same time offering hands-on practice to engage the reader and help new knowledge stick. This second edition has been updated for the Excel 2016 user interface while still providing a bridge for readers wanting to learn DAX in the Excel environment and then transfer their new DAX skills across to Power BI.

数据分析表达式（DAX）是Power Pivot的公式语言。学习DAX语言是增强Excel用户能力的关键，以便他们能够利用这些新的商业智能（BI）功能。本书清楚地解释了Power Pivot的概念，同时提供了动手实践，以吸引读者并帮助新知识的巩固。本书第二版针对Excel 2016的用户界面进行了更新，同时仍为希望在Excel环境中学习DAX，然后将新的DAX技能转移到Power BI上的读者提供了一座桥梁。