How to implement one-to-one, one-to-many and
many-to-many relationships while designing tables?
One-to-One relationship can be implemented as a single table and rarely
as two tables with primary and foreign key relationships.
One-to-Many
relationships are implemented by splitting the data into two tables with
primary key and foreign key relationships.
Many-to-Many relationships are
implemented using a junction table with the keys from both the tables forming
the composite primary key of the junction table.
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