Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
6 years ago

Count and Distinctcount broken when Many to Many relationship Exist

I have a table containing Person ID and criminal registration. Sometimes one person can have two registrations. This table is then connected to a crime occurance table which details when a crime occu...
Greg_Deckler's avatar
Greg_Deckler
Icon for Community Champion rankCommunity Champion
6 years ago

So many-to-many relationships are generally not a good data model. I would recommend by starting with creating a bridge table between the two tables in question.

Anonymous's avatar
Anonymous
Not applicable
6 years ago

I have created the bridge table and allowed filtering to go both ways, otherwise it still wasn't working the way I needed. So I guess that leaves me with two questions. I have three tables, all are now 1 to many and both connections have cross filtering enabled. Will this have a negative impact on my visuals? Secondly how do I know if my visuals are correct? I have about 8 million rows of data so verifying seems a bit difficult to me.