DavidDavid4
12 years agoQrew Trainee
prevent duplicate records - combined key
I have a bridge table between two entity tables; a many-to-many relationship. For example, Beers, Distributers, Beer_Distributers.
I want to prevent duplicate entries in the Beer_Distributers table. A duplicate entry would be one where two records that have the same Beer_id and Distributer_id
I want to prevent duplicate entries in the Beer_Distributers table. A duplicate entry would be one where two records that have the same Beer_id and Distributer_id