We are all aware that Power Pivot works with the DAX (Data Analysis Expression) language. Power Pivot employs DAX for data modelling, and it is simple to use for self-service BI. Data tables and columns in data tables are the foundation of DAX. It's worth noting that it's not reliant on individual cells in the table like Excel's formulae and operations are. Data Analysis Expressions (DAX) may appear overwhelming at first, but the fundamentals of DAX are simple. However, as we continue to try to tackle ever more challenging challenges, we occasionally reach some hard boundaries.