Forum Discussion
Generate calculated table containing rows where count of a value is greater 0 for each user
I know this is easy, but I can't see to find the right combination of steps to do what I'm trying to do.
I currently have TABLE_ALL that contains three columns (for example sake): user(int) contact_method(varchar) confirmed(True or False)
In this table, a user might have 0, 1, 2, or 3 confirmed contact methods.
I need to build a calcualted table - TABLE_NO_CONFIRMED - that contains all users that have 0 (none) confirmed contact methods.
I've begun chipping away by trying to simply filter on a count - but I'm missing how to roll up the count for each user. Here is my attempt that I know is incorrect, but at least it illiustrates my novice approach. Thanks for any input on how to do this:
(my approach which is of course not working): TABLE_NO_CONFIRMED = FILTER(‘db TABLE_A’,COUNTAX('db TABLE_A',COUNTAX('db TABLE_A','db TABLE_A'[confirmed] = TRUE())))
9 Replies
- CahabaData
Memorable Member
To clarify: you state
confirmed(True or False)
Then: "a user might have 0, 1, 2, or 3 confirmed contact methods"
so then it would be a record count? (since the field is true/false) meaning that if 0 contacts you want to count False and only false?
- jkrewpbiFrequent Visitor
For your question "so then it would be a record count? (since the field is true/false) meaning that if 0 contacts you want to count False and only false?".
Almost - I need the list of users that have False for EVERY contact_method.
Another way to look at it (I've added the campaign column in this example - just for context since this table is tied to others via the campaign:
TABLE_A:
campaign user_id contact_method confirmed
X 123 email False
X 123 text False
X 321 email True
X 321 text False
So for my calculated table, I'm looking to get the following result:
campaign user
X 123
I felt it would be kind of odd to stick a calculated column in TABLE_A, because whle the data exists in TABLE_A to determine which users did not confirm at all, I tend to think of keeping calculated/summary data separate from non calculated.
- CahabaData
Memorable Member
It would be easier for me to revert to SQL logic rather than DAX for something like this. I would:
a. created a calculated table: TableFalse that is just the false records
b. created a calculated table: TableTrue that is just the true records
c. do an outer join on the ID field of TableFalse to TableTrue so all False records result
.....in this resulting table some rows will have the TableTrue fields as blanks
d. create a calculated table: NoMethod that filters out the records with blank TableTrue fields (only 1 field is needed)
this might not get you quite there - - air code and haven't completely thought thru every possible variation.....but will get you close
am pretty sure I forgot to include Distinct.... you'll want 1 record per ID in each table true/false......