Hierarchy Modelling - Many to Many relationships

[Sachy123]

In my operational database, the tables are structured in such a way that each object has its own ID and the relationship between objects are stored in another tabes called as relation tabe.

Essentially, the relation table contained a parent child relationship. I added an extra column in it called as PATH, that I can use to traverse through the relations. 

So the tables are City, State, Country and Continent.

City:

State

Country 

Continent:

Most Important is this table which shows the path

table_REL

Question : What is the best way to model this kind of structure in Power BI?  

The below obviously doesnt work the best.

Shall I make a bridge table and then link the Table_Rel to each dimension? Has anyone come across such modelling ?

[v-cgao-msft]

Hi @Sachy123 ,

The bridging table approach is considered the best practice when relating two dimensions. 
Many-to-many relationship guidance

You can rebuild the metadata of the table in PQ to create a snowflake model:

Continent(1)(Continent_ID) --> (*)Country(1)(Country_ID) --> (*)State(1)(State_ID) -->(*)City 

Understand star schema and the importance for Power BI

Parsing Organizational Hierarchy or Chart of Accounts in Power BI with Parent-child Functions in DAX

Best Regards,
Gao
Community Support Team

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