I need to create a measure with a logical DAX function that will iterate row by row between three tables and it will return me a virtual table of the rows that are in the first table and not in the other two.
My goal is to create a Maintenance Dashboard and I need to show how many activities were canceled.
The data is organized by the following:
Table 1 is dAcitivities0, this table is the first planning that happened in the begninning of the year.
Table 2 is the fReporgrammed, it shows me all the reprogrammed activities (dates) and it has the ID from dActivities0;
Table 3 is the fExecuted, it shows me all the activities that were executed and it is also filtered by dAcitivities with its ID.