Regarding insurance, if you have a policies table and an insured clients table, what do think...

Regarding insurance, if you have a policies table and an insured clients table, what do think the database cardinality would be? One-to-one, one-to-many, or many-to-many? Explain

Expert Solution

In case I have a policies table and an insured client table, then the database cardinality would be One-to-Many because There might be a case where a single policy might be purchased by many customers. So, the columns with very few special values are weak cardinality. The "Policies" column will appear in a customer list. This column is likely to have a few policies to choose from and only one of the two values can be used for this column, with all the thousands or millions of records in the table. Not only that, but a single customer might also hold multiple policies. In that case, it would be Many-to-One.

keosha answered 2 years ago

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