I have 2 tables as follows:
Activity table (from audit logs):
Activity Time (the date/time of an activity)
Year (The Year of activity time)
YearMonth (The year & month of activity time in the format 2019-03)
YearMonthDay (The year, month & day of activity time in the format 2019-03-20)
Username (a person's login)
User table:
Username (a person's login)
DepartmentName (a person's department)
The tables have a relationship on the username column - a many to one relationship: Activity (many) - User (one)
I have a table visualisation, which shows the results I would expect - it has 2 columns: YearMonthDate, DepartmentName (DepartmentName is set to Don't summarize). From this table I can see the departments that have activities on each date - I manually count the rows and I can see:
on 2019-03-20 there were 20 departments
on 2019-03-21 there were 18 departments
on 2019-03-22 there were 15 departments
This is as I expected, but when I try to summarize the DepartmentName column using either Count or Count (Distinct) the values don't add up as before (20, 18, 15) - it shows 50 for every date (there are 50 departments in total).
The problem I have here is I want the data on a line chart, I add the Year, YearMonth and YearMonthDay columns to the axis (with the intention of drilling down), I add DepartmentName to Values (set it to Count Distinct) - Don't summarize is not available; this results in every YearMonthDay showing 50 departments, but what I need are the figures as I listed above (20, 18, 15). I'm not sure why, when the count function is being used, the dates are being ignored (technically speaking they're not dates - they're text formatted to look like dates)?
