. The preferred placement fora foreign key when working with a 1:1 relationship is ____.
a.Use the same primary key for both entities
b.Create a bridge entity
c.Place a foreign key in one of the entities
d.Place a foreign key in both entities

A one-to-one relationship in systems analysis is a sort of cardinality that describes the connection between two entities—A and B—in which only one element of A can be linked to one element of B, and vice versa.

The ability to establish a relationship between the tables that comprise a relational database system, like MySQL, is its essential building block.

Foreign keys, or fields that have the same meaning across all the tables in the relationship and act as points of connection to connect entries from several tables together, are used to manage these connections.

One record in one table is connected to just one record in another table via a foreign key relationship, which can also be one-to-many (a record in one table is linked to multiple records in another table).

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. The preferred placement fora foreign key when working with a 1:1 relationship is ____. a.Use the same primary key for both entities b.Create a bridge entity c.Place a foreign key in one of the entities d.Place a foreign key in both entities

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. The preferred placement fora foreign key when working with a 1:1 relationship is ____.
a.Use the same primary key for both entities
b.Create a bridge entity
c.Place a foreign key in one of the entities
d.Place a foreign key in both entities