/SQL/One to one and one to many relationship

One to one and one to many relationship

One to one relationship

One-to-One relationship in DBMS is a relationship between an instance of an entity with another.

One to one and one to many relationship

One-to-one relationships associate one record in one table
with a single record in the other table.
One-to-many relationships associate one record in one table with 
many records in the other table

Source: stackoverflow.com

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