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aishak12's avatar
aishak12
Icon for Helper IV rankHelper IV
4 years ago
Solved

Many to Many Relationship

All,

 

I have this relationship between two tables. I have a question

 

If the top table does not have a record in the bottom table, what will happen? 

 

I do not want any data removed or missing. Will it just populate a blank row for table 2 if nothing matches the value? 

 

 

 

2 Replies

  • PaulDBrown's avatar
    PaulDBrown
    Icon for Community Champion rankCommunity Champion

    Best practices recommend avoiding many-to-many relationships. Create a dimension table for the common field and create a one-to-many relationship between this dimension table and both tables.