One-to-many (one customer - many purchases) would be an example of what kind of table relationship.
One-to-many relationships are the maximum commonplace type of relationships between tables in a database.
In a one-to-many (every so often known as many-to-one) dating, a file in one desk corresponds to zero, one, or many records in every other table.
A one-to-many courting is the most common courting discovered among tables in a relational database.
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