Does Tableau use DAX?
DAX is not just used in PowerBI space, but used (based) in SQL Server Analysis Services (SSAS). DAX allows for CALCULATETABLE etc, to return virtual table, thatcan be filtered. Which Tableau lacks… In short, DAX allows for more complex data manipulation and is more powerful than what Tableau offers.
In terms of visualization abilities, though, Tableau clearly outperforms the competition, but that is another thread. DAX is utilized (based) in SQL Server Analysis Services in addition to PowerBI (SSAS). CALCULATETABLE, for example, can return a virtual table in DAX that can be filtered. which Tableau is missing.
