I have a Mysql database with tables A, B, C and D. A has a relationship between B, C and D, but B, C and D do not have a relationship among them. As to generate graphs in Tableau, data should exist like a table, so I created a joined relationship among them in following way: A-(right join B), A-(right join C), A-(right join D) so that all rows in B, C and D will be present. I would like to know if this kind of join effects database performance as a single table is being created in Tableau with all the fields in A, B, C, and D? Also, am I following the right method?